opt(glossar.html) - phpMan

BF_options (3ssl)    - Blowfish encryption
compopt (1)          - bash built-in commands, see bash(1)
CPAN::Meta::Feature (3pm) - an optional feature provided by a CPAN distribution
cpupower-idle-set (1) - Utility to set cpu idle state specific kernel options
Data::OptList (3pm)  - parse and validate simple name/value option pairs
dhcp-options (5)     - Dynamic Host Configuration Protocol options
dracut.cmdline (7)   - dracut kernel command line options
dracut.kernel (7)    - dracut kernel command line options
dwz (1)              - DWARF optimization and duplicate removal tool
ExtUtils::Mksymlists (3pm) - write linker options files for dynamic extension
fail2ban-regex (1)   - test Fail2ban "failregex" option
fcntl.h (0p)         - file control options
fmt (1)              - simple optimal text formatter
getopt (1)           - parse command options (enhanced)
getopt (3)           - Parse command-line options
getopt (3p)          - command option parsing
Getopt::Long (3pm)   - Extended processing of command line options
Getopt::Std (3pm)    - Process single-character switches with switch clustering
getopt_long (3)      - Parse command-line options
getopt_long_only (3) - Parse command-line options
getopts (1)          - bash built-in commands, see bash(1)
getopts (1p)         - parse utility options
getsockopt (2)       - get and set options on sockets
getsockopt (3p)      - get the socket options
getsubopt (3)        - parse suboption arguments from a string
getsubopt (3p)       - parse suboption arguments from a string
git-config (1)       - Get and set repository or global options
git-gc (1)           - Cleanup unnecessary files and optimize the local repos...
git-hash-object (1)  - Compute object ID and optionally create an object from...
git-maintenance (1)  - Run tasks to optimize Git repository data
hasmntopt (3)        - get filesystem descriptor file entry
lvmvdo (7)           - Support for Virtual Data Optimizer in LVM
mallopt (3)          - set memory allocation parameters
montage (1)          - create a composite image by combining several separate...
my_print_defaults (1) - display options from option files
Net::DNS::RR::OPT (3pm) - DNS OPT resource record
odbc_config (1)      - get compile options for compiling unixODBC client
optarg (3)           - Parse command-line options
optarg (3p)          - options parsing variables
opterr (3)           - Parse command-line options
optind (3)           - Parse command-line options
optopt (3)           - Parse command-line options
pcre2_set_compile_extra_options (3) - Perl-compatible regular expressions (re...
perlperf (1)         - Perl Performance and Optimization Techniques
Pod::Perldoc::GetOptsOO (3pm) - Customized option parser for Pod::Perldoc
posixoptions (7)     - optional parts of the POSIX standard
rpm-misc (8)         - lesser need options for rpm(8)
set (1p)             - set or unset options and positional parameters
setsockopt (2)       - get and set options on sockets
setsockopt (3p)      - set the socket options
shopt (1)            - bash built-in commands, see bash(1)
shred (1)            - overwrite a file to hide its contents, and optionally ...
SSL_clear_options (3ssl) - manipulate SSL options
SSL_CTX_clear_options (3ssl) - manipulate SSL options
SSL_CTX_get_options (3ssl) - manipulate SSL options
SSL_CTX_set_options (3ssl) - manipulate SSL options
SSL_get_options (3ssl) - manipulate SSL options
SSL_get_secure_renegotiation_support (3ssl) - manipulate SSL options
SSL_set_options (3ssl) - manipulate SSL options
stropts.h (0p)       - STREAMS interface (STREAMS)
stty (1p)            - set the options for a terminal
vfychain (1)         - vfychain [options] [revocation options] certfile [[opt...
warnings (3pm)       - Perl pragma to control optional warnings
xfs (5)              - layout, mount options, and supported file attributes f...