file.(1) - phpMan

drwebd (1)           - DrWeb Daemon checks files for viruses.
Test2::IPC::Driver::Files (3pm) - Temp dir + Files concurrency model.
.k5login (5)         - Kerberos V5 acl file for host access
__fbufsize (3)       - interfaces to stdio FILE structure
__flbf (3)           - interfaces to stdio FILE structure
__fpending (3)       - interfaces to stdio FILE structure
__freadable (3)      - interfaces to stdio FILE structure
__freading (3)       - interfaces to stdio FILE structure
__fsetlocking (3)    - interfaces to stdio FILE structure
__fwritable (3)      - interfaces to stdio FILE structure
__fwriting (3)       - interfaces to stdio FILE structure
_flushlbf (3)        - interfaces to stdio FILE structure
_llseek (2)          - reposition read/write file offset
addmntent (3)        - get file system descriptor file entry
addr2line (1)        - convert addresses into file names and line numbers.
aio_fsync (3)        - asynchronous file synchronization
aio_fsync (3p)       - asynchronous file synchronization (REALTIME)
aio_read (3p)        - asynchronous read from a file (REALTIME)
aio_write (3p)       - asynchronous write to a file (REALTIME)
Algorithm::Diff (3pm) - Compute `intelligent' differences between two files /...
Algorithm::DiffOld (3pm) - Compute `intelligent' differences between two file...
anacrontab (5)       - configuration file for Anacron
Archive::Tar::File (3pm) - a subclass for in-memory extracted file from Archi...
Archive::Zip (3pm)   - Provide an interface to ZIP archive files.
Archive::Zip::MemberRead (3pm) - A wrapper that lets you read Zip archive mem...
aria_read_log (1)    - display Aria log file contents
arm_fadvise (2)      - predeclare an access pattern for file data
arm_fadvise64_64 (2) - predeclare an access pattern for file data
arm_sync_file_range (2) - sync a file segment with disk
augenrules (8)       - a script that merges component audit rule files
B::Showlex (3pm)     - Show lexical variables used in functions or files
basename (1)         - strip directory and suffix from filenames
booleans (5)         - The SELinux booleans configuration files
bootchart.conf (5)   - Boot performance analysis graphing tool configuration ...
bootchart.conf.d (5) - Boot performance analysis graphing tool configuration ...
btrfs (5)            - topics about the BTRFS filesystem (mount options, supp...
btrfs (8)            - a toolbox to manage btrfs filesystems
btrfs-balance (8)    - balance block groups on a btrfs filesystem
btrfs-check (8)      - check or repair an unmounted btrfs filesystem
btrfs-convert (8)    - convert from ext2/3/4 filesystem to btrfs in-place
btrfs-device (8)     - manage devices of btrfs filesystems
btrfs-filesystem (8) - command group of btrfs that usually work on the whole ...
btrfs-image (8)      - create/restore an image of the filesystem
btrfs-qgroup (8)     - control the quota group of a btrfs filesystem
btrfs-quota (8)      - control the global quota status of a btrfs filesystem
btrfs-rescue (8)     - Recover a damaged btrfs filesystem
btrfs-restore (8)    - try to restore files from a damaged btrfs filesystem i...
btrfs-scrub (8)      - scrub btrfs filesystem, verify block checksums
btrfs-zero-log (8)   - Recover a damaged btrfs filesystem
btrfsck (8)          - check or repair an unmounted btrfs filesystem
btrfstune (8)        - tune various filesystem parameters
bunzip2 (1)          - a block-sorting file compressor, v1.0.6
bzcat (1)            - decompresses files to stdout
bzcmp (1)            - compare bzip2 compressed files
bzdiff (1)           - compare bzip2 compressed files
bzgrep (1)           - search possibly bzip2 compressed files for a regular e...
bzip2 (1)            - a block-sorting file compressor, v1.0.6
bzip2recover (1)     - recovers data from damaged bzip2 files
bzless (1)           - file perusal filter for crt viewing of bzip2 compresse...
bzmore (1)           - file perusal filter for crt viewing of bzip2 compresse...
cache_check (8)      - validates cache metadata on a device or file.
cache_dump (8)       - dump cache metadata from device or file to standard ou...
cache_repair (8)     - repair cache binary metadata from device/file to devic...
cache_restore (8)    - restore cache metadata file to device or file.
canonicalize_file_name (3) - return the canonicalized absolute pathname
cat (1)              - concatenate files and print on the standard output
cat (1p)             - concatenate and print files
chacl (1)            - change the access control list of a file or directory
chattr (1)           - change file attributes on a Linux file system
chcat (8)            - change file SELinux security category
chcon (1)            - change file SELinux security context
chgrp (1p)           - change the file group ownership
chmod (1)            - change file mode bits
chmod (1p)           - change the file modes
chown (1)            - change file owner and group
chown (1p)           - change the file ownership
cksum (1p)           - write file checksums and sizes
close (2)            - close a file descriptor
close (3p)           - close a file descriptor
cmp (1)              - compare two files byte by byte
cmp (1p)             - compare two files
comm (1)             - compare two sorted files line by line
comm (1p)            - select or reject lines common to two files
config (5ssl)        - OpenSSL CONF library configuration files
config-util (5)      - Common PAM configuration file for configuration utilities
console.handlers (5) - file specifying handlers of console lock and unlock ev...
console.perms (5)    - permissions control file for users at the system console
coredump.conf (5)    - Coredump storage configuration files
coredump.conf.d (5)  - Coredump storage configuration files
cp (1)               - copy files and directories
cp (1p)              - copy files
CPAN::FirstTime (3pm) - Utility for CPAN::Config file Initialization
CPAN::Meta::YAML (3pm) - Read and write a subset of YAML for CPAN Meta files
cpio (1)             - copy files to and from archives
cpio (5)             - format of cpio archive files
creat (2)            - open and possibly create a file or device
creat (3p)           - create a new file or rewrite an existing one
crlutil (1)          - List, generate, modify, or delete CRLs within the NSS ...
crontab (1)          - maintains crontab files for individual users
crontab (5)          - files used to schedule the execution of programs
csplit (1)           - split a file into sections determined by context lines
csplit (1p)          - split files based on context
ctags (1p)           - create a tags file (DEVELOPMENT, FORTRAN)
cut (1)              - remove sections from each line of files
cvtsudoers (1)       - convert between sudoers file formats
cwebp (1)            - compress an image file to a WebP file
Date::Calendar::Profiles (3pm) - Some sample profiles for Date::Calendar and ...
db_archive (1)       - Find unused log files for archival
db_dump (1)          - Write database file using flat-text format
db_dump185 (1)       - Write database file using flat-text format
db_log_verify (1)    - Verify log files of a database environment
db_printlog (1)      - Dumps log files into a human-readable format
db_upgrade (1)       - Upgrade files and databases to the current release ver...
DBD::DBM (3pm)       - a DBI driver for DBM & MLDBM files
DBD::File (3pm)      - Base class for writing file based DBI drivers
DBD::File::Developers (3pm) - Developers documentation for DBD::File
DBD::File::HowTo (3pm) - Guide to create DBD::File based driver
DBD::File::Roadmap (3pm) - Planned Enhancements for DBD::File and pure Perl D...
DBI::ProfileData (3pm) - manipulate DBI::ProfileDumper data dumps
DBI::ProfileDumper (3pm) - profile DBI usage and output data to a file
DBI::ProfileDumper::Apache (3pm) - capture DBI profiling data from Apache/mod...
DBI::ProfileSubs (3pm) - Subroutines for dynamic profile Path
dbiprof (1)          - command-line client for DBI::ProfileData
debugfs (8)          - ext2/ext3/ext4 file system debugger
depmod (8)           - Generate modules.dep and map files.
df (1)               - report file system disk space usage
diff (1)             - compare files line by line
diff (1p)            - compare two files
diff3 (1)            - compare three files line by line
Digest::file (3pm)   - Calculate digests of files
dir_colors (5)       - configuration file for dircolors(1)
dirfd (3)            - get directory stream file descriptor
dirname (1)          - strip last component from file name
dirname (3p)         - report the parent directory name of a file pathname
dmfilemapd (8)       - device-mapper filemap monitoring daemon
dosfsck (8)          - check and repair MS-DOS filesystems
doveadm-fs (1)       - Interact with the abstract mail storage filesystem
doveadm-log (1)      - Locate, test or reopen Dovecot's log files
doveadm-purge (1)    - Remove messages with refcount=0 from mdbox files
dprintf (3)          - print to a file descriptor
dracut.conf (5)      - configuration file(s) for dracut
du (1)               - estimate file space usage
du (1p)              - estimate file space usage
dumpe2fs (8)         - dump ext2/ext3/ext4 filesystem information
dup (2)              - duplicate a file descriptor
dup (3p)             - duplicate an open file descriptor
dup2 (2)             - duplicate a file descriptor
dup2 (3p)            - duplicate an open file descriptor
dup3 (2)             - duplicate a file descriptor
dvipdf (1)           - Convert TeX DVI file to PDF using ghostscript and dvips
dwebp (1)            - decompress a WebP file to an image file
e2fsck (8)           - check a Linux ext2/ext3/ext4 file system
e2fsck.conf (5)      - Configuration file for e2fsck
e2image (8)          - Save critical ext2/ext3/ext4 filesystem metadata to a ...
e2label (8)          - Change the label on an ext2/ext3/ext4 filesystem
e2undo (8)           - Replay an undo log for an ext2/ext3/ext4 filesystem
e4defrag (8)         - online defragmenter for ext4 filesystem
elf (5)              - format of Executable and Linking Format (ELF) files
elfedit (1)          - Update the ELF header of ELF files.
endgrent (3)         - get group file entry
endmntent (3)        - get file system descriptor file entry
endpwent (3)         - get password file entry
endspent (3)         - get shadow password file entry
endttyent (3)        - get ttys file entry
endutent (3)         - access utmp file entries
endutxent (3)        - access utmp file entries
environment (5)      - the environment variables config files
epoll_create (2)     - open an epoll file descriptor
epoll_create1 (2)    - open an epoll file descriptor
epoll_pwait (2)      - wait for an I/O event on an epoll file descriptor
epoll_wait (2)       - wait for an I/O event on an epoll file descriptor
era_check (8)        - validate era metadata on device or file.
era_dump (8)         - dump era metadata from device or file to standard output.
era_restore (8)      - restore era metadata file to device or file.
eventfd (2)          - create a file descriptor for event notification
eventfd2 (2)         - create a file descriptor for event notification
eventfd_read (3)     - create a file descriptor for event notification
eventfd_write (3)    - create a file descriptor for event notification
exec (1p)            - execute commands and open, close, or copy file descrip...
ext2 (5)             - the second extended file system
ext3 (5)             - the third extended file system
ext4 (5)             - the fourth extended file system
ExtUtils::Command (3pm) - utilities to replace common UNIX commands in Makefi...
ExtUtils::Command::MM (3pm) - Commands for the MM's to use in Makefiles
ExtUtils::Install (3pm) - install files from here to there
ExtUtils::Mkbootstrap (3pm) - make a bootstrap file for use by DynaLoader
ExtUtils::Mksymlists (3pm) - write linker options files for dynamic extension
ExtUtils::MM_MacOS (3pm) - once produced Makefiles for MacOS Classic
ExtUtils::Packlist (3pm) - manage .packlist files
ExtUtils::Typemaps (3pm) - Read/Write/Modify Perl/XS typemap files
faccessat (2)        - check user's permissions of a file relative to a direc...
fadvise64 (2)        - predeclare an access pattern for file data
fadvise64_64 (2)     - predeclare an access pattern for file data
faillock (8)         - Tool for displaying and modifying the authentication f...
fallocate (2)        - manipulate file space
fatlabel (8)         - set or get MS-DOS filesystem label
fattach (3p)         - attach a STREAMS-based file descriptor to a file in th...
fc-cache (1)         - build font information cache files
fc-cat (1)           - read font information cache files
fc-conflist (1)      - Show the ruleset files information on the system
fc-query (1)         - query font files
fc-scan (1)          - scan font files or directories
fc-validate (1)      - validate font files
fchmodat (2)         - change permissions of a file relative to a directory f...
fchownat (2)         - change ownership of a file relative to a directory fil...
fcntl (2)            - manipulate file descriptor
fcntl (3p)           - file control
fcntl.h (0p)         - file control options
fcntl64 (2)          - manipulate file descriptor
fdatasync (2)        - synchronize a file's in-core state with storage device
fdatasync (3p)       - synchronize the data of a file (REALTIME)
fdetach (3p)         - detach a name from a STREAMS-based file descriptor (ST...
fdopen (3p)          - associate a stream with a file descriptor
feof (3p)            - test end-of-file indicator on a stream
fexecve (3)          - execute program specified via file descriptor
fgetgrent (3)        - get group file entry
fgetgrent_r (3)      - get group file entry reentrantly
fgetpos (3p)         - get current file position information
fgetpwent (3)        - get password file entry
fgetpwent_r (3)      - get passwd file entry reentrantly
fgetspent (3)        - get shadow password file entry
fgetspent_r (3)      - get shadow password file entry
fgetwc (3)           - read a wide character from a FILE stream
fgetws (3)           - read a wide-character string from a FILE stream
fifo (7)             - first-in first-out special file, named pipe
file (1)             - determine file type
file (1p)            - determine file type
file-hierarchy (7)   - File system hierarchy overview
File::Basename (3pm) - Parse file paths into directory, filename and suffix.
File::Compare (3pm)  - Compare files or filehandles
File::Copy (3pm)     - Copy files or filehandles
File::DosGlob (3pm)  - DOS like globbing and then some
File::Find (3pm)     - Traverse a directory tree.
File::Glob (3pm)     - Perl extension for BSD glob routine
File::GlobMapper (3pm) - Extend File Glob to Allow Input and Output Files
File::Listing (3pm)  - parse directory listing
File::Path (3pm)     - Create or remove directory trees
File::Spec (3pm)     - portably perform operations on file names
File::Spec::Cygwin (3pm) - methods for Cygwin file specs
File::Spec::Epoc (3pm) - methods for Epoc file specs
File::Spec::Functions (3pm) - portably perform operations on file names
File::Spec::Mac (3pm) - File::Spec for Mac OS (Classic)
File::Spec::OS2 (3pm) - methods for OS/2 file specs
File::Spec::Unix (3pm) - File::Spec for Unix, base for other File::Spec modules
File::Spec::Win32 (3pm) - methods for Win32 file specs
File::stat (3pm)     - by-name interface to Perl's built-in stat() functions
File::Temp (3pm)     - return name and handle of a temporary file safely
file_contexts (5)    - userspace SELinux labeling interface and configuration...
file_contexts.homedirs (5) - userspace SELinux labeling interface and configu...
file_contexts.local (5) - userspace SELinux labeling interface and configurat...
file_contexts.subs (5) - userspace SELinux labeling interface and configurati...
file_contexts.subs_dist (5) - userspace SELinux labeling interface and config...
FileCache (3pm)      - keep more files open than the system permits
filefrag (8)         - report on file fragmentation
FileHandle (3pm)     - supply object methods for filehandles
fileno (3)           - check and reset stream status
fileno (3p)          - map a stream pointer to a file descriptor
fileno_unlocked (3)  - nonlocking stdio functions
filesystems (5)      - Linux file-system types: minix, ext, ext2, ext3, ext4,...
filetest (3pm)       - Perl pragma to control the filetest permission operators
find (1)             - search for files in a directory hierarchy
find (1p)            - find files
findfs (8)           - find a filesystem by label or UUID
findmnt (8)          - find a filesystem
fingerprint-auth (5) - Common configuration file for PAMified services
fipscheck (8)        - perform a FIPS-140-2 validation check of one or more f...
fipshmac (8)         - create FIPS-140-2 validation checksum files
fixfiles (8)         - fix file SELinux security contexts.
flockfile (3)        - lock FILE for stdio
fnmatch (3)          - match filename or pathname
fnmatch (3p)         - match a filename or a pathname
fnmatch.h (0p)       - filename-matching types
fonts-conf (5)       - Font configuration files
fpathconf (3)        - get configuration values for files
fputwc (3)           - write a wide character to a FILE stream
fputws (3)           - write a wide-character string to a FILE stream
fs (5)               - Linux file-system types: minix, ext, ext2, ext3, ext4,...
fsadm (8)            - utility to resize or check filesystem on a device
fsck (8)             - check and repair a Linux filesystem
fsck.cramfs (8)      - fsck compressed ROM file system
fsck.ext2 (8)        - check a Linux ext2/ext3/ext4 file system
fsck.ext3 (8)        - check a Linux ext2/ext3/ext4 file system
fsck.ext4 (8)        - check a Linux ext2/ext3/ext4 file system
fsck.fat (8)         - check and repair MS-DOS filesystems
fsck.minix (8)       - check consistency of Minix filesystem
fsck.msdos (8)       - check and repair MS-DOS filesystems
fsck.vfat (8)        - check and repair MS-DOS filesystems
fseek (3p)           - reposition a file-position indicator in a stream
fseeko (3)           - seek to or report file position
fseeko (3p)          - reposition a file-position indicator in a stream
fsetpos (3p)         - set current file position
fsfreeze (8)         - suspend access to a filesystem (Linux Ext3/4, ReiserFS...
fstab (5)            - static information about the filesystems
fstat (2)            - get file status
fstat (3p)           - get file status
fstat64 (2)          - get file status
fstatat (2)          - get file status relative to a directory file descriptor
fstatat64 (2)        - get file status relative to a directory file descriptor
fstatfs (2)          - get file system statistics
fstatfs64 (2)        - get file system statistics
fstatvfs (2)         - get file system statistics
fstatvfs (3)         - get file system statistics
fstatvfs (3p)        - get file system information
fstrim (8)           - discard unused blocks on a mounted filesystem
fsync (2)            - synchronize a file's in-core state with storage device
ftell (3p)           - return a file offset in a stream
ftello (3)           - seek to or report file position
ftello (3p)          - return a file offset in a stream
ftpasswd (1)         - Perl script for managing AuthUserFiles and AuthGroupFiles
ftpquota (1)         - Perl script for managing limit/tally files for mod_quo...
ftpscrub (8)         - scrub the proftpd scoreboard file of stale entries
ftruncate (2)        - truncate a file to a specified length
ftruncate (3p)       - truncate a file to a specified length
ftruncate64 (2)      - truncate a file to a specified length
ftrylockfile (3)     - lock FILE for stdio
fts (3)              - traverse a file hierarchy
fts_children (3)     - traverse a file hierarchy
fts_close (3)        - traverse a file hierarchy
fts_open (3)         - traverse a file hierarchy
fts_read (3)         - traverse a file hierarchy
fts_set (3)          - traverse a file hierarchy
ftw (3)              - file tree walk
ftw (3p)             - traverse (walk) a file tree
ftw.h (0p)           - file tree traversal
funlockfile (3)      - lock FILE for stdio
fuser (1)            - identify processes using files or sockets
fuser (1p)           - list process IDs of all processes that have one or mor...
futimens (3)         - change file timestamps with nanosecond precision
futimes (3)          - change file timestamps
futimesat (2)        - change timestamps of a file relative to a directory fi...
fwide (3)            - set and determine the orientation of a FILE stream
genhomedircon (8)    - generate SELinux file context configuration entries fo...
genrandom (8)        - generate a file containing random data
GeoIP.conf (5)       - Configuration file for geoipupdate
getcap (8)           - examine file capabilities
getdirentries (3)    - get directory entries in a file system-independent format
getfacl (1)          - get file access control lists
getgrent (3)         - get group file entry
getgrent_r (3)       - get group file entry reentrantly
getgrgid (3)         - get group file entry
getgrgid_r (3)       - get group file entry
getgrnam (3)         - get group file entry
getgrnam_r (3)       - get group file entry
getmntent (3)        - get file system descriptor file entry
getmntent_r (3)      - get file system descriptor file entry
getmsg (3p)          - receive next message from a STREAMS file (STREAMS)
getpmsg (3p)         - receive next message from a STREAMS file (STREAMS)
getpwent (3)         - get password file entry
getpwent_r (3)       - get passwd file entry reentrantly
getpwnam (3)         - get password file entry
getpwnam_r (3)       - get password file entry
getpwuid (3)         - get password file entry
getpwuid_r (3)       - get password file entry
getspent (3)         - get shadow password file entry
getspent_r (3)       - get shadow password file entry
getspnam (3)         - get shadow password file entry
getspnam_r (3)       - get shadow password file entry
getttyent (3)        - get ttys file entry
getttynam (3)        - get ttys file entry
getumask (3)         - get file creation mask
getutent (3)         - access utmp file entries
getutent_r (3)       - access utmp file entries
getutid (3)          - access utmp file entries
getutid_r (3)        - access utmp file entries
getutline (3)        - access utmp file entries
getutline_r (3)      - access utmp file entries
getutxent (3)        - access utmp file entries
getutxid (3)         - access utmp file entries
getutxline (3)       - access utmp file entries
getwc (3)            - read a wide character from a FILE stream
git-add (1)          - Add file contents to the index
git-annotate (1)     - Annotate file lines with commit information
git-apply (1)        - Apply a patch to files and/or to the index
git-archive (1)      - Create an archive of files from a named tree
git-check-ignore (1) - Debug gitignore / exclude files
git-checkout-index (1) - Copy files from the index to the working tree
git-clean (1)        - Remove untracked files from the working tree
git-diff-files (1)   - Compares files in the working tree and the index
git-gc (1)           - Cleanup unnecessary files and optimize the local repos...
git-index-pack (1)   - Build pack index file for an existing packed archive
git-ls-files (1)     - Show information about files in the index and the work...
git-merge-file (1)   - Run a three-way file merge
git-merge-index (1)  - Run a merge for files needing merging
git-mv (1)           - Move or rename a file, a directory, or a symlink
git-pack-redundant (1) - Find redundant pack files
git-prune-packed (1) - Remove extra objects that are already in pack files
git-rm (1)           - Remove files from the working tree and from the index
git-stage (1)        - Add file contents to the staging area
git-tar-tree (1)     - Create a tar archive of the files in the named tree ob...
git-unpack-file (1)  - Creates a temporary file with a blob's contents
git-update-index (1) - Register file contents in the working tree to the index
git-update-server-info (1) - Update auxiliary info file to help dumb servers
git-verify-pack (1)  - Validate packed Git archive files
gitignore (5)        - Specifies intentionally untracked files to ignore
gpg-zip (1)          - Encrypt or sign files into an archive
gprof (1)            - display call graph profile data
grep (1p)            - search a file for a pattern
group.conf (5)       - configuration file for the pam_group module
grpck (8)            - verify integrity of group files
grub2-file (1)       - Check if FILE is of specified type.
grub2-get-kernel-settings (3) - Evaluate the system's kernel installation set...
grub2-kbdcomp (1)    - Generate a GRUB keyboard layout file.
grub2-menulst2cfg (1) - Convert a configuration file from GRUB 0.xx to GRUB 2...
grub2-mkconfig (8)   - Generate a GRUB configuration file.
grub2-mkfont (1)     - Convert common font file formats into the PF2 format.
grub2-mklayout (1)   - Generate a GRUB keyboard layout file.
grub2-script-check (1) - Check GRUB configuration file for syntax errors.
grub2-setpassword (8) - Generate the user.cfg file containing the hashed grub...
grub2-syslinux2cfg (1) - Transform a syslinux config file into a GRUB config.
gunzip (1)           - compress or expand files
gzexe (1)            - compress executable files in place
gzip (1)             - compress or expand files
h2ph (1)             - convert .h C header files to .ph Perl header files
h2xs (1)             - convert .h C header files to Perl extensions
hardlink (1)         - Consolidate duplicate files via hardlinks
hasmntopt (3)        - get file system descriptor file entry
head (1)             - output the first part of files
head (1p)            - copy the first part of files
hesiod.conf (5)      - Configuration file for the Hesiod library
hexdump (1)          - display file contents in ascii, decimal, hexadecimal, ...
hier (7)             - description of the file system hierarchy
hosts.allow (5)      - format of host access control files
hosts.deny (5)       - format of host access control files
hosts_access (5)     - format of host access control files
htdigest (1)         - manage user files for digest authentication
htpasswd (1)         - Manage user files for basic authentication
HTTP::Cookies::Microsoft (3pm) - access to Microsoft cookies files
HTTP::Cookies::Netscape (3pm) - access to Netscape cookies files
httxt2dbm (1)        - Generate dbm files for use with RewriteMap
hunspell (4)         - format of Hunspell dictionaries and affix files
iceauth (1)          - ICE authority file utility
identify (1)         - describes the format and characteristics of one or mor...
igawk (1)            - gawk with include files
import (1)           - saves any visible window on an X server and outputs it...
innochecksum (1)     - offline InnoDB file checksum utility
inotify (7)          - monitoring file system events
install (1)          - copy files and set attributes
intel-microcode2ucode (8) - convert Intel microcode.dat file into ucode files
intro (4)            - introduction to special files
intro (5)            - introduction to file formats
IO::Compress::Bzip2 (3pm) - Write bzip2 files/buffers
IO::Compress::Deflate (3pm) - Write RFC 1950 files/buffers
IO::Compress::Gzip (3pm) - Write RFC 1952 files/buffers
IO::Compress::RawDeflate (3pm) - Write RFC 1951 files/buffers
IO::Compress::Zip (3pm) - Write zip files/buffers
IO::File (3pm)       - supply object methods for filehandles
IO::HTML (3pm)       - Open an HTML file with automatic charset detection
IO::Uncompress::AnyInflate (3pm) - Uncompress zlib-based (zip, gzip) file/buffer
IO::Uncompress::AnyUncompress (3pm) - Uncompress gzip, zip, bzip2 or lzop fil...
IO::Uncompress::Bunzip2 (3pm) - Read bzip2 files/buffers
IO::Uncompress::Gunzip (3pm) - Read RFC 1952 files/buffers
IO::Uncompress::Inflate (3pm) - Read RFC 1950 files/buffers
IO::Uncompress::RawInflate (3pm) - Read RFC 1951 files/buffers
IO::Uncompress::Unzip (3pm) - Read zip files/buffers
isastream (3p)       - test a file descriptor (STREAMS)
isatty (3)           - test whether a file descriptor refers to a terminal
isosize (8)          - output the length of an iso9660 filesystem
join (1)             - join lines of two files on a common field
journal-remote.conf (5) - Journal remote service configuration files
journal-remote.conf.d (5) - Journal remote service configuration files
journald.conf (5)    - Journal service configuration files
journald.conf.d (5)  - Journal service configuration files
k5login (5)          - Kerberos V5 acl file for host access
kdump.conf (5)       - configuration file for kdump kernel.
lckpwdf (3)          - get shadow password file entry
ldap.conf (5)        - LDAP configuration file/environment variables
libopenjp2 (3)       - a library for reading and writing JPEG2000 image files.
libxml (3)           - library used to parse XML files
limits.conf (5)      - configuration file for the pam_limits module
linkat (2)           - create a file link relative to directory file descriptors
llseek (2)           - reposition read/write file offset
ln (1)               - make links between files
ln (1p)              - link files
locale.conf (5)      - Configuration file for locale settings
locate (1)           - find files by name
lockf (3p)           - record locking on files
lockfile (1)         - conditional semaphore-file creator
logind.conf (5)      - Login manager configuration files
logind.conf.d (5)    - Login manager configuration files
logresolve (1)       - Resolve IP-addresses to hostnames in Apache log files
lp (1p)              - send files to a printer
lsattr (1)           - list file attributes on a Linux second extended file s...
lseek (2)            - reposition read/write file offset
lseek (3p)           - move the read/write file offset
lseek64 (3)          - reposition 64-bit read/write file offset
lsof (8)             - list open files
lstat (2)            - get file status
lstat64 (2)          - get file status
lutimes (3)          - change file timestamps
lvm.conf (5)         - Configuration file for LVM2
lwp-download (1)     - Fetch large files from the web
LWP::MediaTypes (3pm) - guess media type for a file or a URL
lz4 (1)              - lz4, unlz4, lz4cat - Compress or decompress .lz4 files
lz4c (1)             - lz4, unlz4, lz4cat - Compress or decompress .lz4 files
lz4cat (1)           - lz4, unlz4, lz4cat - Compress or decompress .lz4 files
magic (5)            - file command's magic pattern file
Mail::Cap (3pm)      - Parse mailcap files
makedumpfile (8)     - make a small dumpfile of kdump
makedumpfile.conf (5) - The filter configuration file for makedumpfile(8).
master (5)           - Postfix master process configuration file format
matchpathcon (8)     - get the default SELinux security context for the speci...
media (5)            - userspace SELinux labeling interface and configuration...
Memoize::AnyDBM_File (3pm) - glue to provide EXISTS for AnyDBM_File for Stora...
Memoize::NDBM_File (3pm) - glue to provide EXISTS for NDBM_File for Storable use
Memoize::SDBM_File (3pm) - glue to provide EXISTS for SDBM_File for Storable use
mkdirat (2)          - create a directory relative to a directory file descri...
mkdosfs (8)          - create an MS-DOS filesystem under Linux
mke2fs (8)           - create an ext2/ext3/ext4 filesystem
mke2fs.conf (5)      - Configuration file for mke2fs
mkfifo (1p)          - make FIFO special files
mkfifo (3)           - make a FIFO special file (a named pipe)
mkfifoat (3)         - make a FIFO (named pipe) relative to a directory file ...
mkfontdir (1)        - create an index of X font files in a directory
mkfontscale (1)      - create an index of scalable font files for X
mkfs (8)             - build a Linux filesystem
mkfs.btrfs (8)       - create a btrfs filesystem
mkfs.cramfs (8)      - make compressed ROM file system
mkfs.ext2 (8)        - create an ext2/ext3/ext4 filesystem
mkfs.ext3 (8)        - create an ext2/ext3/ext4 filesystem
mkfs.ext4 (8)        - create an ext2/ext3/ext4 filesystem
mkfs.fat (8)         - create an MS-DOS filesystem under Linux
mkfs.minix (8)       - make a Minix filesystem
mkfs.msdos (8)       - create an MS-DOS filesystem under Linux
mkfs.vfat (8)        - create an MS-DOS filesystem under Linux
mkfs.xfs (8)         - construct an XFS filesystem
mklost+found (8)     - create a lost+found directory on a mounted Linux secon...
mknod (1)            - make block or character special files
mknod (3p)           - make a directory, a special file, or a regular file
mknodat (2)          - create a special or ordinary file relative to a direct...
mkstemp (3p)         - make a unique filename
mktemp (1)           - create a temporary file or directory
mktemp (3)           - make a unique temporary filename
mktemp (3p)          - make a unique filename (LEGACY)
mmap (2)             - map or unmap files or devices into memory
mmap2 (2)            - map files or devices into memory
mmap64 (3)           - map or unmap files or devices into memory
Module::Build::PPMMaker (3pm) - Perl Package Manager file creation
Module::Load (3pm)   - runtime require of both modules and files
Module::Metadata (3pm) - Gather package and POD information from perl module ...
Module::Signature (3pm) - Module signature file manipulation
mogrify (1)          - resize an image, blur, crop, despeckle, dither, draw o...
more (1)             - file perusal filter for crt viewing
more (1p)            - display files on a page-by-page basis
mount (2)            - mount file system
mount (8)            - mount a filesystem
msghack (1)          - alter PO files in ways
msync (2)            - synchronize a file with a memory map
mtree (5)            - format of mtree dir hierarchy files
munmap (2)           - map or unmap files or devices into memory
muttrc (5)           - Configuration file for the Mutt Mail User Agent
muttrc.local (5)     - Configuration file for the Mutt Mail User Agent
mv (1)               - move (rename) files
mv (1p)              - move files
my_print_defaults (1) - display options from option files
myisamlog (1)        - display MyISAM log file contents
mysql_find_rows (1)  - extract SQL statements from files
mysql_fix_extensions (1) - normalize table file name extensions
mysqlbinlog (1)      - utility for processing binary log files
mysqldumpslow (1)    - Summarize slow query log files
named-checkconf (8)  - named configuration file syntax checking tool
named-checkzone (8)  - zone file validity checking or converting tool
named-compilezone (8) - zone file validity checking or converting tool
named.conf (5)       - configuration file for named
NDBM_File (3pm)      - Tied access to ndbm files
Net::SSLeay::Handle (3pm) - Perl module that lets SSL (HTTPS) sockets be hand...
nftw (3)             - file tree walk
nftw (3p)            - walk a file tree
nl (1)               - number lines of files
nm (1)               - list symbols from object files
nm (1p)              - write the name list of an object file (DEVELOPMENT)
objcopy (1)          - copy and translate object files
objdump (1)          - display information from object files.
od (1)               - dump files in octal and other formats
od (1p)              - dump files in various formats
odbcinst (1)         - An unixODBC tool for manipulating configuration files
ODBM_File (3pm)      - Tied access to odbm files
oldfind (1)          - search for files in a directory hierarchy
oldfstat (2)         - get file status
oldlstat (2)         - get file status
oldstat (2)          - get file status
open (2)             - open and possibly create a file or device
openat (2)           - open a file relative to a directory file descriptor
openssl.cnf (5ssl)   - OpenSSL CONF library configuration files
pam.conf (5)         - PAM configuration files
pam.d (5)            - PAM configuration files
pam_env.conf (5)     - the environment variables config files
pam_issue (8)        - PAM module to add issue file to user prompt
pam_umask (8)        - PAM module to set the file mode creation mask
Parse::CPAN::Meta (3pm) - Parse META.yml and META.json CPAN metadata files
password-auth (5)    - Common configuration file for PAMified services
paste (1)            - merge lines of files
paste (1p)           - merge corresponding or subsequent lines of files
patch (1p)           - apply changes to files
pathchk (1)          - check whether file names are valid or portable
pathconf (3)         - get configuration values for files
pear.conf (5)        - configuration file for PEAR applications.
peekfd (1)           - peek at file descriptors of running processes
perlfaq5 (1)         - Files and Formats
pf2afm (1)           - Make an AFM file from Postscript (PFB/PFA/PFM) font fi...
pigz (1)             - compress or expand files
pivot_root (2)       - change the root file system
pivot_root (8)       - change the root filesystem
pk12util (1)         - Export and import keys and certificate to or from a PK...
pkcs11.conf (5)      - Configuration files for PKCS#11 modules
pkcs12 (1ssl)        - PKCS#12 file utility
pl2pm (1)            - Rough tool to translate Perl4 .pl files to Perl5 .pm m...
pod2html (1)         - convert .pod files to .html files
pod2usage (1)        - print usage messages from embedded pod docs in files
Pod::Html (3pm)      - module to convert pod files to HTML
Pod::Simple::HTMLBatch (3pm) - convert several Pod files to several HTML files
poll (2)             - wait for some event on a file descriptor
posix_fadvise (2)    - predeclare an access pattern for file data
posix_fadvise (3p)   - file advisory information (ADVANCED REALTIME)
posix_fallocate (3)  - allocate file space
posix_fallocate (3p) - file space control (ADVANCED REALTIME)
posix_spawn_file_actions_addclose (3p) - add close or open action to spawn fi...
posix_spawn_file_actions_adddup2 (3p) - add dup2 action to spawn file actions...
posix_spawn_file_actions_addopen (3p) - add close or open action to spawn fil...
posix_spawn_file_actions_destroy (3p) - destroy and initialize spawn file act...
posix_spawn_file_actions_init (3p) - destroy and initialize spawn file action...
postcat (1)          - show Postfix queue file contents
postlogin (5)        - Common configuration file for PAMified services
pp (1)               - Prints certificates, keys, crls, and pkcs7 files
ppoll (2)            - wait for some event on a file descriptor
pr (1)               - convert text files for printing
pr (1p)              - print files
pread (2)            - read from or write to a file descriptor at a given offset
pread64 (2)          - read from or write to a file descriptor at a given offset
preconv (1)          - convert encoding of input files to something GNU troff...
proc (5)             - process information pseudo-file system
procmailex (5)       - procmail rcfile examples
proftpd (8)          - Professional configurable, secure file transfer protoc...
ptargrep (1)         - Apply pattern matching to the contents of files in a t...
ptx (1)              - produce a permuted index of file contents
putpwent (3)         - write a password file entry
putspent (3)         - get shadow password file entry
pututline (3)        - access utmp file entries
pututxline (3)       - access utmp file entries
putwc (3)            - write a wide character to a FILE stream
pwck (8)             - verify integrity of password files
pwrite (2)           - read from or write to a file descriptor at a given offset
pwrite64 (2)         - read from or write to a file descriptor at a given offset
pzstd (1)            - zstd, zstdmt, unzstd, zstdcat - Compress or decompress...
read (2)             - read from a file descriptor
readahead (2)        - perform file readahead into page cache
readelf (1)          - Displays information about ELF files.
readlink (1)         - print resolved symbolic links or canonical file names
readlinkat (2)       - read value of a symbolic link relative to a directory ...
remap_file_pages (2) - create a nonlinear file mapping
remove (3)           - remove a file or directory
rename (1)           - rename files
renameat (2)         - rename a file relative to directory file descriptors
resize2fs (8)        - ext2/ext3/ext4 file system resizer
restorecon (8)       - restore file(s) default SELinux security contexts.
rev (1)              - reverse lines of a file or files
rewind (3p)          - reset the file position indicator in a stream
rm (1)               - remove files or directories
rrdflushcached (1)   - Flush the values for a spcific RRD file from memory.
rsync (1)            - a fast, versatile, remote (and local) file-copying tool
rsyncd.conf (5)      - configuration file for rsync in daemon mode
scandirat (3)        - scan a directory relative to a directory file descriptor
scp (1)              - secure copy (remote file copy program)
SDBM_File (3pm)      - Tied access to sdbm files
sdiff (1)            - side-by-side merge of file differences
secon (1)            - See an SELinux context, from a file, program or user i...
securetty (5)        - file which lists terminals from which root can log in
sefcontext_compile (8) - compile file context regular expression files
selabel_db (5)       - userspace SELinux labeling interface and configuration...
selabel_file (5)     - userspace SELinux labeling interface and configuration...
selabel_media (5)    - userspace SELinux labeling interface and configuration...
selabel_x (5)        - userspace SELinux labeling interface and configuration...
SelectSaver (3pm)    - save and restore selected file handle
selinux_config (5)   - The SELinux sub-system configuration file.
semanage-fcontext (8) - SELinux Policy Management file context tool
semanage.conf (5)    - global configuration file for the SELinux Management l...
sendfile (2)         - transfer data between file descriptors
sendfile64 (2)       - transfer data between file descriptors
sepermit.conf (5)    - configuration file for the pam_sepermit module
sepgsql_contexts (5) - userspace SELinux labeling interface and configuration...
service_seusers (5)  - The SELinux GNU/Linux user and service to SELinux user...
sestatus.conf (5)    - The sestatus(8) configuration file.
setcap (8)           - set file capabilities
setfacl (1)          - set file access control lists
setfiles (8)         - set SELinux file security contexts.
setfsgid (2)         - set group identity used for file system checks
setfsgid32 (2)       - set group identity used for file system checks
setfsuid (2)         - set user identity used for file system checks
setfsuid32 (2)       - set user identity used for file system checks
setgrent (3)         - get group file entry
setmntent (3)        - get file system descriptor file entry
setpwent (3)         - get password file entry
setspent (3)         - get shadow password file entry
setttyent (3)        - get ttys file entry
setup (2)            - setup devices and file systems, mount root file system
setutent (3)         - access utmp file entries
setutxent (3)        - access utmp file entries
sftp (1)             - secure file transfer program
sgetspent (3)        - get shadow password file entry
sgetspent_r (3)      - get shadow password file entry
shadow (3)           - encrypted password file routines
shred (1)            - overwrite a file to hide its contents, and optionally ...
signalfd (2)         - create a file descriptor for accepting signals
signalfd4 (2)        - create a file descriptor for accepting signals
signtool (1)         - Digitally sign objects and files.
signver (1)          - Verify a detached PKCS#7 signature for a file.
smartcard-auth (5)   - Common configuration file for PAMified services
sort (1)             - sort lines of text files
sort (1p)            - sort, merge, or sequence check text files
split (1)            - split a file into pieces
split (1p)           - split files into pieces
spufs (7)            - SPU file system
ssh_config (5)       - OpenSSH SSH client configuration files
stat (1)             - display file or file system status
stat (2)             - get file status
stat (3p)            - get file status
stat64 (2)           - get file status
statfs (2)           - get file system statistics
statfs64 (2)         - get file system statistics
statvfs (2)          - get file system statistics
statvfs (3)          - get file system statistics
statvfs (3p)         - get file system information
statvfs.h (0p)       - VFS File System information structure
stdio_ext (3)        - interfaces to stdio FILE structure
strings (1)          - print the strings of printable characters in files.
strings (1p)         - find printable strings in files
strip (1)            - Discard symbols from object files.
strip (1p)           - remove unnecessary information from executable files (...
suffixes (7)         - list of file suffixes
swapoff (2)          - start/stop swapping to file/device
swapoff (8)          - enable/disable devices and files for paging and swapping
swapon (2)           - start/stop swapping to file/device
swapon (8)           - enable/disable devices and files for paging and swapping
switch_root (8)      - switch to another filesystem as the root of the mount ...
symlinkat (2)        - create a symbolic link relative to a directory file de...
sync (3p)            - schedule file system updates
sync_file_range (2)  - sync a file segment with disk
sync_file_range2 (2) - sync a file segment with disk
sys_statvfs.h (0p)   - VFS File System information structure
sys_times.h (0p)     - file access and modification times structure
sysfs (2)            - get file system type information
system-auth (5)      - Common configuration file for PAMified services
system.conf.d (5)    - System and session service manager configuration files
systemd-delta (1)    - Find overridden configuration files
systemd-fsck (8)     - File system checker logic
systemd-fsck-root.service (8) - File system checker logic
systemd-fsck@.service (8) - File system checker logic
systemd-quotacheck (8) - File system quota checker logic
systemd-quotacheck.service (8) - File system quota checker logic
systemd-remount-fs (8) - Remount root and kernel file systems
systemd-remount-fs.service (8) - Remount root and kernel file systems
systemd-system.conf (5) - System and session service manager configuration files
systemd-tmpfiles (8) - Creates, deletes and cleans up volatile and temporary ...
systemd-tmpfiles-clean.service (8) - Creates, deletes and cleans up volatile ...
systemd-tmpfiles-clean.timer (8) - Creates, deletes and cleans up volatile an...
systemd-tmpfiles-setup-dev.service (8) - Creates, deletes and cleans up volat...
systemd-tmpfiles-setup.service (8) - Creates, deletes and cleans up volatile ...
systemd-user.conf (5) - System and session service manager configuration files
t1libconfig (8)      - create the t1lib.config and FontDataBase files for t1lib
tac (1)              - concatenate and print files in reverse
tail (1)             - output the last part of files
TAP::Formatter::File (3pm) - Harness output delegate for file output
TAP::Formatter::File::Session (3pm) - Harness output delegate for file output
TAP::Parser::Iterator::Stream (3pm) - Iterator for filehandle-based TAP sources
TAP::Parser::SourceHandler::File (3pm) - Stream TAP from a text file.
tar (5)              - format of tape archive files
tcsd.conf (5)        - configuration file for the trousers TCS daemon.
tee (1)              - read from standard input and write to standard output ...
term (5)             - format of compiled term file.
test (1)             - check file types and compare values
Text::Diff (3pm)     - Perform diffs on files and record sets
thin_dump (8)        - dump thin provisioning metadata from device or file to...
thin_metadata_size (8) - thin provisioning metadata device/file size calculator.
thin_restore (8)     - restore thin provisioning metadata file to device or f...
thin_rmap (8)        - output reverse map of a thin provisioned region of blo...
Tie::File (3pm)      - Access the lines of a disk file via a Perl array
time.conf (5)        - configuration file for the pam_time module
timerfd_create (2)   - timers that notify via file descriptors
timerfd_gettime (2)  - timers that notify via file descriptors
timerfd_settime (2)  - timers that notify via file descriptors
times.h (0p)         - file access and modification times structure
tmpfiles.d (5)       - Configuration for creation, deletion and cleaning of v...
touch (1)            - change file timestamps
touch (1p)           - change file access and modification times
truncate (1)         - shrink or extend the size of a file to the specified size
truncate (2)         - truncate a file to a specified length
truncate (3p)        - truncate a file to a specified length
truncate64 (2)       - truncate a file to a specified length
tty (1)              - print the file name of the terminal connected to stand...
tune2fs (8)          - adjust tunable filesystem parameters on ext2/ext3/ext4...
ulckpwdf (3)         - get shadow password file entry
ulimit (1p)          - set or report file size limit
umask (1p)           - get or set the file mode creation mask
umask (2)            - set file mode creation mask
umask (3p)           - set and get the file mode creation mask
umount (2)           - unmount file system
umount (8)           - unmount file systems
umount2 (2)          - unmount file system
ungetwc (3)          - push back a wide character onto a FILE stream
unlink (2)           - delete a name and possibly the file it refers to
unlinkat (2)         - remove a directory entry relative to a directory file ...
unlz4 (1)            - lz4, unlz4, lz4cat - Compress or decompress .lz4 files
unxz (1)             - Compress or decompress .xz and .lzma files
unzip (1)            - list, test and extract compressed files in a ZIP archive
unzstd (1)           - zstd, zstdmt, unzstd, zstdcat - Compress or decompress...
updatedb.conf (5)    - a configuration file for updatedb(8)
URI::file (3pm)      - URI that maps to local file names
user.conf.d (5)      - System and session service manager configuration files
user_contexts (5)    - The SELinux user contexts configuration files
userdel (8)          - delete a user account and related files
ustat (2)            - get file system statistics
utime (2)            - change file last access and modification times
utime (3p)           - set file access and modification times
utimensat (2)        - change file timestamps with nanosecond precision
utimes (2)           - change file last access and modification times
utimes (3p)          - set file access and modification times (LEGACY)
utmpdump (1)         - dump UTMP and WTMP files in raw format
utmpname (3)         - access utmp file entries
utmpxname (3)        - access utmp file entries
uuencode (1)         - encode a file into email friendly text
vconsole.conf (5)    - Configuration file for the virtual console
vdprintf (3)         - print to a file descriptor
vfychain (1)         - vfychain [options] [revocation options] certfile [[opt...
vgmknodes (8)        - Create the special files for volume group devices in /dev
wcmgr (1)            - Webalizer (DNS) Cache file Manager
webalizer (1)        - A web server log file analysis tool.
webazolver (1)       - A web server log file analysis tool.
webpmux (1)          - command line tool to create WebP Mux/container file.
whereis (1)          - locate the binary, source, and manual page files for a...
write (2)            - write to a file descriptor
x_contexts (5)       - userspace SELinux labeling interface and configuration...
xfs (5)              - layout, mount options, and supported file attributes f...
xfs_admin (8)        - change parameters of an XFS filesystem
xfs_copy (8)         - copy the contents of an XFS filesystem
xfs_db (8)           - debug an XFS filesystem
xfs_estimate (8)     - estimate the space that an XFS filesystem will take
xfs_freeze (8)       - suspend access to an XFS filesystem
xfs_fsr (8)          - filesystem reorganizer for XFS
xfs_growfs (8)       - expand an XFS filesystem
xfs_info (8)         - expand an XFS filesystem
xfs_io (8)           - debug the I/O path of an XFS filesystem
xfs_logprint (8)     - print the log of an XFS filesystem
xfs_mdrestore (8)    - restores an XFS metadump image to a filesystem image
xfs_metadump (8)     - copy XFS filesystem metadata to a file
xfs_quota (8)        - manage use of quota on XFS filesystems
xfs_repair (8)       - repair an XFS filesystem
XML::Simple (3pm)    - Easily read/write XML (esp config files)
xmlcatalog (1)       - Command line tool to parse and manipulate XML or SGML ...
xz (1)               - Compress or decompress .xz and .lzma files
xzcat (1)            - Compress or decompress .xz and .lzma files
xzcmp (1)            - compare compressed files
xzdiff (1)           - compare compressed files
xzegrep (1)          - search compressed files for a regular expression
xzfgrep (1)          - search compressed files for a regular expression
xzgrep (1)           - search compressed files for a regular expression
xzless (1)           - view xz or lzma compressed (text) files
xzmore (1)           - view xz or lzma compressed (text) files
YAML::Tiny (3pm)     - Read/Write YAML files with as little code as possible
yum.conf (5)         - Configuration file for yum(8).
zcat (1)             - compress or expand files
zcmp (1)             - compare compressed files
zdiff (1)            - compare compressed files
zforce (1)           - force a '.gz' extension on all gzip files
zgrep (1)            - search possibly compressed files for a regular expression
zip (1)              - package and compress (archive) files
zipdetails (1)       - display the internal structure of zip files
zipgrep (1)          - search files in a ZIP archive for lines matching a pat...
zipnote (1)          - write the comments in zipfile to stdout, edit comments...
zipsplit (1)         - split a zipfile into smaller zipfiles
zless (1)            - file perusal filter for crt viewing of compressed text
zmore (1)            - file perusal filter for crt viewing of compressed text
znew (1)             - recompress .Z files to .gz files
zstd (1)             - zstd, zstdmt, unzstd, zstdcat - Compress or decompress...
zstdcat (1)          - zstd, zstdmt, unzstd, zstdcat - Compress or decompress...
zstdgrep (1)         - print lines matching a pattern in zstandard-compressed...
zstdless (1)         - view zstandard-compressed files