June 2003
Beginner to intermediate
944 pages
43h 1m
English
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Null command. Returns an exit status of 0. The colon command is often put as the first character of a Bourne or Korn shell script to act as a place-holder to keep a # (hash) from accidentally becoming the first character.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.