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bash check other instances

steamboatid answered on July 24, 2021 Popularity 1/10 Helpfulness 1/10

answer bash check other instances

bash check other instances

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#!/bin/bash

BNAME=$(basename $0)
LOCKFILE=/var/lock/$BNAME
if [ -e ${LOCKFILE} ] && kill -0 `cat ${LOCKFILE}`; then
    echo "already running"
    exit
fi

# make sure the lockfile is removed when we exit and then claim it
trap "rm -f ${LOCKFILE}; exit" INT TERM EXIT
echo $$ > ${LOCKFILE}

# do stuff
sleep 1000

rm -f ${LOCKFILE}

Popularity 1/10 Helpfulness 1/10 Language shell

Source: stackoverflow.com

Tags: bash instances shell

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