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manovotny/script-already-running-check.sh

Last active November 12, 2024 10:33
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Bash script to check if a script is already running.
Raw
script-already-running-check.sh
#!/bin/bash
dupe_script=$(ps -ef | grep "SCRIPT_NAME.sh" | grep -v grep | wc -l | xargs)
if [ ${dupe_script} -gt 2 ]; then
echo -e "The SCRIPT_NAME.sh script was already running!"
exit 0
fi
@se-bre
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se-bre commented Nov 12, 2024 •
edited
Loading

just found this - pgrep does the job (just be careful with cron and using different shells in script and cron ;)

function check_script_running () {
        for pid in $(pgrep -f $(basename $0))
        do
            if [ $pid != $$ ] 
            then
                echo "[$(date)] : $(basename $0) : Process is already running with PID $pid"
                exit 1
            else
              echo "Running with PID $pid"
            fi
        done
}

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