34 lines
800 B
Plaintext
34 lines
800 B
Plaintext
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#!/bin/bash
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function g_lockfile {
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# Do not run multiple times in one script
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[ -z $g_lockfile ] || return 0
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g_lockfile=/var/lock/${g_scriptname}.lock
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if [[ $EUID -ne 0 ]]
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then
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g_lockfile=~/.${g_scriptname}.lock
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fi
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if [ $g_scriptname == "bash" ]
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then
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g_echo_error "Not for interactive bash - scripts only"
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else
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if [ -f $g_lockfile ]
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then
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#if ps ax | grep -v grep | perl -pe 's/^ +//g' | grep ^`cat $g_lockfile` >/dev/null 2>&1
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if [ -d /proc/$(cat $g_lockfile) ]
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then
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g_echo_error "PID in $g_lockfile exists - exiting..."
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exit 1
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else
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g_echo_warn "Removing Lockfile $g_lockfile"
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rm -f $g_lockfile
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fi
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fi
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echo $$ >$g_lockfile
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# Remove lockfile when the script exits/ends
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g_trap_exit="$g_trap_exit ; rm $g_lockfile"
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trap "$g_trap_exit" EXIT
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fi
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}
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