-d, --debug
Print debugging information.
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-v, --verbose
Print verbose warning messages.
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-r, --regex
Interpret each keyword as a regular expression. This is the default behaviour. Each keyword will
be matched against the page names and the descriptions independently. It can match any part of
either. The match is not limited to word boundaries.
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-w, --wildcard
Interpret each keyword as a pattern containing shell style wildcards. Each keyword will be
matched against the page names and the descriptions independently. If --exact is also used, a
match will only be found if an expanded keyword matches an entire description or page name.
Otherwise the keyword is also allowed to match on word boundaries in the description.
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-e, --exact
Each keyword will be exactly matched against the page names and the descriptions.
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-a, --and
Only display items that match all the supplied keywords. The default is to display items that
match any keyword.
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-l, --long
Do not trim output to the terminal width. Normally, output will be truncated to the terminal
width to avoid ugly results from poorly-written NAME sections.
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-s list, --sections list, --section list
Search only the given manual sections. list is a colon- or comma-separated list of sections. If
an entry in list is a simple section, for example "3", then the displayed list of descriptions
will include pages in sections "3", "3perl", "3x", and so on; while if an entry in list has an
extension, for example "3perl", then the list will only include pages in that exact part of the
manual section.
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-m system[,...], --systems=system[,...]
If this system has access to other operating system's manual page descriptions, they can be
searched using this option. To search NewOS's manual page descriptions, use the option -m NewOS.
The system specified can be a combination of comma-delimited operating system names. To include a
search of the native operating system's whatis descriptions, include the system name man in the
argument string. This option will override the $SYSTEM environment variable.
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-M path, --manpath=path
Specify an alternate set of colon-delimited manual page hierarchies to search. By default,
apropos uses the $MANPATH environment variable, unless it is empty or unset, in which case it will
determine an appropriate manpath based on your $PATH environment variable. This option overrides
the contents of $MANPATH.
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-L locale, --locale=locale
apropos will normally determine your current locale by a call to the C function setlocale(3) which
interrogates various environment variables, possibly including $LC_MESSAGES and $LANG. To
temporarily override the determined value, use this option to supply a locale string directly to
apropos. Note that it will not take effect until the search for pages actually begins. Output
such as the help message will always be displayed in the initially determined locale.
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-C file, --config-file=file
Use this user configuration file rather than the default of ~/.manpath.
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-h, --help
Print a help message and exit.
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-V, --version
Display version information.
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