cheat

cheat 允许你在命令行上创建和查看交互式小抄。它的设计目的是帮助提醒 *nix 系统管理员注意他们经常使用但又不常记住的命令选项。「cheat allows you to create and view interactive cheatsheets on the command-line. It was designed to help remind *nix system administrators of options for commands that they use frequently, but not frequently enough to remember.」