whatis
Display one-line descriptions from manual pages. tldr-pages
On Linux, macOS
Linux
Display a description from a man page
whatis commandIdentifyDon't cut the description off at the end of the line
whatis --long commandIdentifyDisplay descriptions for all commands matching a glob
whatis --wildcard net*IdentifySearch man page descriptions with a regex
whatis --regex 'wish[0-9]\.[0-9]'IdentifyDisplay descriptions in a specific language
whatis --locale en commandIdentify