apropos

DESCRIPTION The apropos and whatis utilities query manual page databases generated by makewhatis (8) , evaluating expression for each file in each database. By default, they display the names, section numbers, and description lines of all matching manuals. -O outkey Show the values associated with the key outkey instead of the manual descriptions. The options -chlw are also supported and are documented in man (1) . The options -fkl are mutually exclusive and override each other. expr1 -a expr2 True if both expr1 and expr2 are true (logical and'). Results are sorted first according to the section number in ascending numerical order, then by the page name in ascending ascii (7) alphabeti- cal order, case-insensitive. In general, macro keys are supposed to yield complete results without expecting the user to consider actual macro usage. For example, re- sults include: FILES mandoc.db name of the makewhatis (8) keyword database /etc/man.conf default man (1) configuration file All options, the whatis command, support for logical operators, macro keys, substring matching, sorting of results, the environment variables MANPAGER and MANPATH, the database format, and the configuration file are extensions to that specification. HISTORY Part of the functionality of whatis was already provided by the former manwhere utility in 1BSD. The apropos and whatis utilities first ap- peared in 2BSD. They were rewritten from scratch for OpenBSD 5.6. AUTHORS Bill Joy wrote manwhere in 1977 and the original BSD apropos and whatis in February 1979. The current version was written by Kristaps Dzonsons and Ingo Schwarze .