Hi Stephen,
It depends on what shell you are using. For csh or tcsh, you can use
$status or $?. For sh, ash, bash, bash2, ash, use $?.
So,
$ ls
...
$ echo $?
0
$ ls | grep bleah
1
$
The first echoes 0 because the 'ls' command is successful. The second
echoes 1 because there's not 'bleah' file.
Etienne
Stephen King wrote:
> What is the echo command that returns a 0 if the previous command ran
> correctly?
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