I install ffaker but cannot find it in my PATH
masi@masi:~$ sudo gem install ffaker Fetching: ffaker-2.6.0.gem (100%) Successfully installed ffaker-2.6.0 Parsing documentation for ffaker-2.6.0 Installing ri documentation for ffaker-2.6.0 Done installing documentation for ffaker after 4 seconds 1 gem installed masi@masi:~$ ff ffmpeg ffplay ffprobe ffserver masi@masi:~$ require 'ffaker' bash: require: command not found masi@masi:~$ sudo ffaker sudo: ffaker: command not found OS: Debian 9