30 lines
861 B
Text
30 lines
861 B
Text
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#!/bin/sh
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# Author: P@draigBrady.com
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# V1.0 : Nov 3 2006
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#
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# Execute a command with a timeout.
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# If the timeout occurs the exit status is 128
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#
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# Note there is an asynchronous equivalent of this
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# script packaged with bash (under /usr/share/doc/ in my distro),
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# which I only noticed after writing this.
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if [ "$#" -lt "2" ]; then
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echo "Usage: `basename $0` timeout_in_seconds command" >&2
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echo "Example: `basename $0` 2 sleep 3 || echo timeout" >&2
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exit 1
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fi
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cleanup()
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{
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kill %1 2>/dev/null #kill sleep $timeout if running
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kill %2 2>/dev/null && exit 128 #kill monitored job if running
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}
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set -m #enable job control
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trap "cleanup" 17 #cleanup after timeout or command
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timeout=$1 && shift #first param is timeout in seconds
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sleep $timeout& #start the timeout
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"$@" #start the job
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