If you need a quick reference on the basics of Unix, have I got a deal for you. The Unix enthusiast over at freeengineer.org has put together "the basic commands ... this Unix cheat sheet is ...

A cheat sheet provides only a quick explanation and a handful of command examples to help you get started ... She describes herself as "USL" (Unix as a second language) but remembers enough ...

is something of a Unix/Linux tradition ... Unlike man pages, cheat sheets just provide command examples, but often these are the most useful thing, especially for new users who don’t want ...

FOSSwire has a Unix/Linux Command Cheat Sheet on its website. I remember there was once a thread here with "favorite and useful commands" or some such thing. Anyone want to try and replicate that ...

For example, to get full information on the UNIX tar command, in Terminal type curl ... info returned is held in community-maintained cheat sheet databases, it's highly likely what you're looking ...