CODEWITHSUNDEEP
shell
darecoder
darecoder

Reputation: 1608

Store "No such file or directory" message in a variable

I have script which internally calls another shell script. There is a possibility that the second script does not exists. I want to write conditional executions after that. How can I store the message "No such file or directory" inside a variable?

OUTPUT=$(sh ../../bin/tools/myscript.sh)
sh: ../../bin/tools/myscript.sh: No such file or directory
[root@xxxx home]# echo $OUTPUT

The $OUTPUT should also print "No such file or directory" message.

Upvotes: 0

Views: 572

Answers (2)

darecoder
darecoder

Reputation: 1608

The below code worked for me :

OUTPUT=$((sh ../../bin/tools/myscript.sh) 2>&1)

Upvotes: 0

user1934428
user1934428

Reputation: 22225

The message has been printed to stderr, so you have to catch stderr somehow:

OUTPUT=$(sh ../../bin/tools/myscript.sh 2>&1)

or something like

error_file=/tmp/stderr.$$
sh ../../bin/tools/myscript.sh 2>$error_file
OUTPUT=$(cat $error_file)
rm $error_file

depending on your concrete needs. Of course in your case, it would maybe make more sense to test the existence of myscript.sh, before you try to run it.

Upvotes: 2

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