30 May
2011
30 May
'11
4:55 p.m.
On Mon, May 30, 2011 at 10:38 AM, Dotan Cohen dotancohen@gmail.com wrote:
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?
You can check the return code.
$ ls $ echo $?
0 (usually) indicates success.
- Bob