There's a reason why the basic Unix file commands are ls, cp, mv, rm. They're easy to type on a TTY. grep is from the ed command "g/re/p" which is g (all line

There's a reason why the basic Unix file commands are ls, cp, mv, rm. They're easy to type on a TTY. grep is from the ed command "g/re/p" which is g (all lines, short for "1,$") /re/ regular expression to search for, "p" to print the lines. It still works in vi.