36 lines
471 B
Bash
36 lines
471 B
Bash
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#!/bin/sh
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# lockfile.sh - handle lock files
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set -e
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Check_lockfile ()
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{
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LOCKFILE="${1}"
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# Checking lock file
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if [ -f "${LOCKFILE}" ]
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then
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echo "E: system locked"
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exit 1
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fi
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}
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Create_lockfile ()
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{
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LOCKFILE="${1}"
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LOCKDIRECTORY="`dirname ${1}`"
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# Creating lock directory
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if [ ! -d "${LOCKDIRECTORY}" ]
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then
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mkdir -p "${LOCKDIRECTORY}"
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fi
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# Creating lock file
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trap "test -f ${LOCKFILE} && \
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rm -f ${LOCKFILE}; exit 0" 0 2 15
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touch "${LOCKFILE}"
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}
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