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#!/bin/bash |
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#!/bin/sh |
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# |
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# |
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# $Header: /var/cvsroot/gentoo-x86/sys-process/cronbase/files/run-crons-0.3.3,v 1.1 2009/04/14 06:13:36 bangert Exp $ |
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# $Header: /var/cvsroot/gentoo-x86/sys-process/cronbase/files/run-crons-0.3.3,v 1.1 2009/04/14 06:13:36 bangert Exp $ |
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# |
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# Make sure we're not running multiple instances at once. |
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# Make sure we're not running multiple instances at once. |
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# Try twice to lock, otherwise give up. |
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# Try twice to lock, otherwise give up. |
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for ((i = 0; i < 2; i = i + 1)); do |
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i=0 |
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while [ "$i" -lt 2 ]; do |
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ln -sn $$ ${LOCKFILE} 2>/dev/null && break |
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ln -sn $$ ${LOCKFILE} 2>/dev/null && break |
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# lock failed, check for a running process. |
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# lock failed, check for a running process. |
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else |
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else |
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rm -f ${LOCKFILE} |
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rm -f ${LOCKFILE} |
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fi |
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fi |
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i=$(($i+1)) |
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done |
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done |
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# Check to make sure locking was successful |
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# Check to make sure locking was successful |
