# man -k updatedb updatedb.conf (5) - a configuration file for updatedb(8) updatedb (8) - replace a database for plocate
Within the following instance, I searched on the phrase “halt” and located a collection of associated instructions.
# apropos halt halt (8) - Energy off, reboot, or halt the machine poweroff (8) - Energy off, reboot, or halt the machine reboot (8) - Energy off, reboot, or halt the machine shutdown (8) - Halt, energy off or reboot the machine systemd-halt.service (8) - System shutdown logic
Right here’s an fascinating set of instructions that recommend that apropos could typically discover greater than you need to see. I searched on the time period “host” and seen that a few of the returned descriptions included “ghost” as an alternative of “host”. Every time this type of downside pops up, add the -e choice to get a precise (entire phrase) match. Discover the distinction within the response once I use this selection. The second command under solely counts instructions when the outline contains “host” as an entire phrase.
$ apropos host | wc -l 142 $ apropos -e host | wc -l 78
One of many issues you may encounter is when the apropos command responds with “nothing acceptable” no matter what time period you ask about. Because of this man pages should be created or up to date.