|Linux & Unix Commands - Search Man Pages
APROPOS(1) BSD General Commands Manual APROPOS(1)
apropos -- search the complete content of all man pages
apropos [-123456789Ccp] [-n Number of results] [-S machine] [-s section] query
The apropos utility performs a full text search over the complete content of all man pages.
It uses the FTS engine of Sqlite to perform the search. The database is created with the
help of makemandb(8) utility.
This implementation of the apropos utility is more sophisticated than the classical version
of apropos. Like modern search applications, it uses advanced techniques like stemming and
term weighting to rank the matching results in decreasing order of relevance. By default
apropos will only display the top 10 matches in the output.
Quotes are optional for specifying multiword queries.
It supports the following options:
-1 Search only within section 1 manual pages.
-2 Search only within section 2 manual pages.
-3 Search only within section 3 manual pages.
-4 Search only within section 4 manual pages.
-5 Search only within section 5 manual pages.
-6 Search only within section 6 manual pages.
-7 Search only within section 7 manual pages.
-8 Search only within section 8 manual pages.
-9 Search only within section 9 manual pages.
-C Do not show the context of the match.
-c Do show the context of the match (default).
-n Output up to the specified number of search results. The default limit is 10.
-p Display all matching results and pipe them through a pager (defaulting to more(1)).
Limit the search to the pages for the specified machine architecture. By default
pages for all architectures are shown in the search results.
Restrict the search to the specified section of the manual. By default, pages from
all section are shown. This option is for backwards compatibility with the classic
version of apropos, using it is equivalent to using the  options
/var/db/man.db The Sqlite FTS database which contains an index of the manual pages.
man(1), whatis(1), makemandb(8)
The apropos command appeared in 3.0BSD. It was rewritten in NetBSD 6.0 to support full text
search using Sqlite.
BSD April 21, 2012 BSD
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