SlackBuildsOrg/office/navi

navi : An interactive cheatsheet tool for the command-line and
application launchers.

navi allows you to browse through cheatsheets (that you may write
yourself or download from maintainers) and execute commands. Suggested
values for arguments are dynamically displayed in a list.

Pros
- it will spare you from knowing CLIs by heart
- it will spare you from copy-pasting output from intermediate commands
- it will make you type less
- it will teach you new one-liners

It uses fzf, skim or Alfred under the hood.
It can be either used as a command or as a shell widget 'à la' Ctrl-R).

Running navi the first time will help you download cheatsheets.