Usage: whatis [OPTION...] KEYWORD...
-d, --debug emit debugging messages
-v, --verbose print verbose warning messages
-r, --regex interpret each keyword as a regex
-w, --wildcard the keyword(s) contain wildcards
-l, --long do not trim output to terminal width
-C, --config-file=FILE use this user configuration file
-L, --locale=LOCALE define the locale for this search
-m, --systems=SYSTEM use manual pages from other systems
-M, --manpath=PATH set search path for manual pages to PATH
-s, --sections=LIST, --section=LIST search only these sections (colon-separated)
-?, --help give this help list --usage give a short usage message
-V, --version print program version
Mandatory or optional arguments to long options are also mandatory or optional for any corresponding short options. Report bugs to cjwatson@debian.org.