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672 richard 1 
#!/bin/bash
826 franck 2 
# $Id: alcasar-version.sh 1827 2016-04-19 09:47:29Z raphael.pion $
510 richard 3 
 
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# alcasar-version-list.sh
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# by Richard REY
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# This script is distributed under the Gnu General Public License (GPL)
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# récupère les versions d'ALCASAR (stable et développement)
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# download the ALCASAR versions (stable / dev)
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VERSION="/var/www/html/VERSION"
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SITE_VERSION="version.alcasar.net"
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MAJ="False"
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DNS_VERSION_L=`dig $SITE_VERSION txt | grep ^$SITE_VERSION | cut -d"\"" -f2`
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DNS_VERSION=`echo $DNS_VERSION_L|cut -d" " -f1`
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MAJ_DNS_VERSION=`echo $DNS_VERSION|cut -d"." -f1`
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MIN_DNS_VERSION=`echo $DNS_VERSION|cut -d"." -f2`
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UPD_DNS_VERSION=`echo $DNS_VERSION|cut -d"." -f3`
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RUNNING_VERSION=`cat $VERSION|cut -d" " -f1`
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MAJ_RUNNING_VERSION=`echo $RUNNING_VERSION|cut -d"." -f1`
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MIN_RUNNING_VERSION=`echo $RUNNING_VERSION|cut -d"." -f2|cut -c1`
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UPD_RUNNING_VERSION=`echo $RUNNING_VERSION|cut -d"." -f3`
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#compare major number
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if [ $MAJ_RUNNING_VERSION -lt $MAJ_DNS_VERSION ]
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then
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	MAJ="True"
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fi
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#compare minor number
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if [ $MAJ_RUNNING_VERSION -eq $MAJ_DNS_VERSION ]
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then
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	if [ $MIN_RUNNING_VERSION -lt $MIN_DNS_VERSION ]
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	then
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		MAJ="True"
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	fi
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#compare update number
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	if [ $MIN_DNS_VERSION -eq $MIN_RUNNING_VERSION ]
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	then
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		if [ -n "$UPD_DNS_VERSION" ]
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		then
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			if [ -z "$UPD_RUNNING_VERSION" ]
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			then
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				MAJ="True"
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			else
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		       		if [ $UPD_RUNNING_VERSION -lt $UPD_DNS_VERSION ]
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				then
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					MAJ="True"
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				fi
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			fi
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		fi
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	fi
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fi
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if [ $MAJ = "True" ]
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	then
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		echo "An updated version is available ($DNS_VERSION)"
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	else
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		echo "The Running version ($RUNNING_VERSION) is up to date"
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fi