A shell script for backup a mediawiki data.

bkup_wiki.sh

#!/bin/sh
filename=~/bkup/wiki$(date +%Y%m%d).xml
ssh mediawiki_serv php ./www/wiki/maintenance/dumpBackup.php --full > $filename
md5=`md5sum $filename | cut -c 1-32`
lmd5=`cat ~/bkup/last_md5`

if [ "$lmd5" != "$md5" ]
then
	echo "$md5" > ~/bkup/last_md5
	#echo "The latest backup file is not same with last one."
else
	rm $filename
	#echo "The latest backup file is same with last one. Delete it."
fi
#echo "$filename md5:$md5 lmd5:$lmd5"