I came across a shell script that contains a statement like,
if [ $val -eq $? ]
What does $? mean here?
I came across a shell script that contains a statement like, if [ $val
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I came across a shell script that contains a statement like,
if [ $val -eq $? ]
What does $? mean here?
returns the status of the last finished command.
Status 0 tells you that everything finished ok.
In addition the
$sign is a special symbol – and in that case$valextract the value that is hold by the variableval