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+#!/bin/sh
+# This script is used to save an old configuration allowing
+# a new installation. Thus the local hidden files and directories
+# cannot interfer with the new installation.
+# /home must be a partition (/ home not included in / partition)
+# Each user gets a new fresh environment. All old directories and files
+# are moved in ~/ancien and nothing is lost.
+# The system configuration is copied in /home/frigo, allowing to format /
+# Pierre Jarillon - 2009 - License GPL 
+
+ETC=/etc
+FRIGO=/home/frigo
+
+date
+
+# -------------------------------------------------------------------------------------
+if [ $(basename `pwd`) != 'home' ]
+then 
+	echo "Error : The pending directory must be home. Use the command : cd /home"; 
+	exit 1; 
+fi
+
+echo "Ce script is intended to be executed before a new system reinstallation."
+echo "It allows to create a new fresh session for each user without any lost."
+echo "System datas are saved in $FRIGO and old /home/*/ are moved in /home/*/ancien/"
+echo "All sessions using /home must be closed."
+echo ""
+echo -n "OK to continue? [y/N]: "
+read response
+if [ -z $response ]; then
+	   response=n
+fi
+echo ""
+case $response in
+   [OoYy]*) 
+   	echo "OK..."
+	;;
+	*)
+          echo "Aborted"
+         exit 0 ;;
+esac
+
+# -----------------Safe storage location-----------------------------------------------
+
+if [ -d $FRIGO ]; then rm -rf $FRIGO; fi;
+mkdir $FRIGO
+mkdir $FRIGO/faces
+
+# -------------------------------------------------------------------------------------
+
+ls -1|while read d
+do
+	if [ ! -d $d ]; then continue; fi
+	n=`basename $d` 
+	x="x"
+	x=`grep ^$n: ../etc/passwd|cut -d: -f1`
+	if [ m$x != m$n ] ;then continue ;fi
+	g=`grep ^$n: ../etc/passwd|cut -d: -f4`
+#	echo $n > $FRIGO/liste
+	[ -f /usr/share/faces/$n.png ] && cp /usr/share/faces/$n.png  $FRIGO/faces/
+	echo "Traité : $n  groupe : $g"
+
+	date > $n/ladate.$n.txt
+	cp -a /etc/skel .
+	chown -R $n:$g skel
+	mv $n skel/
+	mv skel/$n skel/ancien
+	mv skel $n
+done
+
+# A full copy of /etc in /home/$FRIGO is the best. In fact, few files are used
+# If the user uid 500 is saved it is not necessary to ask for it during the install.
+
+# cp -a /etc $FRIGO/
+
+awk -F : '{a=$3+0; if ((a >499)&&(a<10000))print $0}' $ETC/passwd > $FRIGO/passwd
+cut -d: -f1 $FRIGO/passwd|while read user; do grep "^$user" $ETC/group >> $FRIGO/group; done
+cut -d: -f1 $FRIGO/passwd|while read user; do grep "^$user" $ETC/shadow >> $FRIGO/shadow; done
+grep HOSTNAME $ETC/sysconfig/network > $FRIGO/hostname
+cp $ETC/hosts $FRIGO/hosts
+if [ -d $ETC/ssh ]
+then
+	mkdir $FRIGO/ssh; cp -p $ETC/ssh/ssh_host_* $FRIGO/ssh/
+fi
+echo "Done."