30 May
2011
30 May
'11
4:38 p.m.
All commands return a value, usually 0 if run properly. For instance, try: $ ls && echo "done" $ lsd && echo "done"
The echo command is only executed if the ls command exited successfully. If one did not add the echo command with the && after a command, how can he determine if the command exited successfully? I have a particularly troubling script that gives does not mention if it exits successfully or not. I could modify it (and probably will some day) but in general I'd like to know the answer to this question as a learning experience.
Thanks.
--
Dotan Cohen
http://gibberish.co.il
http://what-is-what.com