fixed deletion of yesterdays dump

backupdb

@@ -1,5 +1,7 @@
 #!/bin/bash
 
+set -x
+
 OUTPUT="/var/lib/backupdb"
 
 cd $OUTPUT
@@ -8,9 +10,10 @@ databases=`mysql -e "SHOW DATABASES;" | tr -d "| " | grep -v Database`
 
 for db in $databases; do
 	if [[ "$db" != "information_schema" ]] && [[ "$db" != "performance_schema" ]] && [[ "$db" != _* ]]; then
+		YESTERDAY=$OUTPUT/`date --date='yesterday' +%Y%m%d`.$db.sql.gz
+		if [[ -f ${YESTERDAY} ]]; then rm ${YESTERDAY}; fi
 		DUMP=$OUTPUT/`date +%Y%m%d`.$db.sql
 		echo "Dumping database: $db"
-		if [[ -f ${DUMP}.gz ]]; then rm ${DUMP}.gz; fi
 		mysqldump --databases $db > $DUMP
 		gzip $DUMP
 	fi