shell bash - return code

Question

Is it possible to run a command to redirect output and standard error in a file and know the return code of the command ?

./COMMANDE.sh 2>&1 | tee -a $LOG_DIRECTORY/$LOG_FILE
if [ $? = 0 ]; then
    echo "OK"
else
    echo "KO"
    exit 1
fi

Currently, I get the return code of the tee command, I want to recover that of COMMANDE.sh.

DevSolar · Accepted Answer · 2015-08-25 07:27:19Z

3

You want PIPESTATUS.

./COMMANDE.sh 2>&1 | tee -a $LOG_DIRECTORY/$LOG_FILE
if [ ${PIPESTATUS[0]} = 0 ]; then
    echo "OK"
else
    echo "KO"
    exit 1
fi

The index into the array ([0]) is the index of the command in the pipe chain just executed (./COMMANDE.sh). ${PIPESTATUS[1]} would be the tee.

edited Aug 25, 2015 at 7:27

answered Aug 25, 2015 at 7:22

DevSolar

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1 Comment

DevSolar Over a year ago

@davidcondrey pointed out that zsh has a similar construct pipestatus that starts counting array indices at 1.

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