apropos

Search the whatis database for strings.

Syntax
      apropos keyword ...

The whatis database is a set of database files containing short descriptions of system commands for keywords. apropos searches this database and displays the result on standard output.

Examples

List all the man(1) and man(8) commands
$ apropos ' ' | egrep '\(1\)|\(8\)'


“A man travels the world in search of what he needs and returns home to find it” - George Moore

Related:

apropos man page - Apple.com
whatis - search the whatis database for complete words.


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