check(8) - phpMan
drwebd (1) - DrWeb Daemon checks files for viruses. access (2) - check real user's permissions for a file aspell (1) - interactive spell checker body_checks (5) - Postfix built-in content inspection btrfs-check (8) - check or repair an unmounted btrfs filesystem btrfs-scrub (8) - scrub btrfs filesystem, verify block checksums btrfsck (8) - check or repair an unmounted btrfs filesystem cache_check (8) - validates cache metadata on a device or file. checkmodule (8) - SELinux policy module compiler checkpolicy (8) - SELinux policy compiler cksum (1) - checksum and count the bytes in a file cksum (1p) - write file checksums and sizes clearerr (3) - check and reset stream status cracklib-check (8) - Check passwords using libcrack2 create-cracklib-dict (8) - Check passwords using libcrack2 db_checkpoint (1) - Periodically checkpoint transactions dnssec-checkds (8) - DNSSEC delegation consistency checking tool dnssec-coverage (8) - checks future DNSKEY coverage for a zone dosfsck (8) - check and repair MS-DOS filesystems e2fsck (8) - check a Linux ext2/ext3/ext4 file system eaccess (3) - check effective user's permissions for a file enchant (1) - a spellchecker era_check (8) - validate era metadata on device or file. euidaccess (3) - check effective user's permissions for a file ExtUtils::Manifest (3pm) - utilities to write and check a MANIFEST file faccessat (2) - check user's permissions of a file relative to a direc... feof (3) - check and reset stream status ferror (3) - check and reset stream status fileno (3) - check and reset stream status fipscheck (8) - perform a FIPS-140-2 validation check of one or more f... fipshmac (8) - create FIPS-140-2 validation checksum files fsadm (8) - utility to resize or check filesystem on a device fsck (8) - check and repair a Linux filesystem 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 git-check-attr (1) - Display gitattributes information git-check-ignore (1) - Debug gitignore / exclude files git-check-ref-format (1) - Ensures that a reference name is well formed git-checkout (1) - Checkout a branch or paths to the working tree git-checkout-index (1) - Copy files from the index to the working tree git-verify-tag (1) - Check the GPG signature of tags grub2-script-check (1) - Check GRUB configuration file for syntax errors. grub2-file (1) - Check if FILE is of specified type. header_checks (5) - Postfix built-in content inspection hunspell (1) - spell checker, stemmer and morphological analyzer innochecksum (1) - offline InnoDB file checksum utility Mail::SpamAssassin::Plugin::AccessDB (3pm) - check message against Access Dat... Mail::SpamAssassin::Plugin::Check (3pm) - primary message check functionality Mail::SpamAssassin::Plugin::DCC (3pm) - perform DCC check of messages Mail::SpamAssassin::Plugin::Pyzor (3pm) - perform Pyzor check of messages Mail::SpamAssassin::Plugin::Razor2 (3pm) - perform Razor check of messages Mail::SpamAssassin::Plugin::Reuse (3pm) - For reusing old rule hits during a ... mcheck (3) - heap consistency checking mcheck_check_all (3) - heap consistency checking mcheck_pedantic (3) - heap consistency checking md5sum (1) - compute and check MD5 message digest mprobe (3) - heap consistency checking mysql_upgrade (1) - check tables for MySQL upgrade mysqlaccess (1) - client for checking access privileges mysqlcheck (1) - a table maintenance program 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-rrchecker (1) - syntax checker for individual DNS resource records Net::Ping (3pm) - check a remote host for reachability nss-policy-check (1) - nss-policy-check policy-file pam_cracklib (8) - PAM module to check the password against dictionary words pam_postgresok (8) - simple check of real UID and corresponding account name pam_pwquality (8) - PAM module to perform password quality checking pam_shells (8) - PAM module to check for valid login shell pam_timestamp_check (8) - Check to see if the default timestamp is valid Params::Check (3pm) - A generic input parsing/checking mechanism. pathchk (1) - check whether file names are valid or portable pathchk (1p) - check pathnames pkcheck (1) - Check whether a process is authorized pkla-check-authorization (8) - Evaluate pklocalauthority authorization config... Pod::Perldoc::ToChecker (3pm) - let Perldoc check Pod for errors Pod::Simple::Checker (3pm) - - check the Pod syntax of a document pvck (8) - Check the consistency of physical volume(s) pwscore (1) - simple configurable tool for checking quality of a pas... 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 sha1sum (1) - compute and check SHA1 message digest sha224sum (1) - compute and check SHA224 message digest sha256sum (1) - compute and check SHA256 message digest sha384sum (1) - compute and check SHA384 message digest sha512sum (1) - compute and check SHA512 message digest shasum (1) - Print or Check SHA Checksums sort (1p) - sort, merge, or sequence check text files sum (1) - checksum and count the blocks in a file 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 tc-csum (8) - checksum update action test (1) - check file types and compare values thin_check (8) - validates thin provisioning metadata on a device or file vgck (8) - Check the consistency of volume group(s) xfs_ncheck (8) - generate pathnames from i-numbers for XFS