Backup Jenkins on Linux

backup_jenkins.sh

#!/bin/bash
#set -x
COUNT_OLD_TAR=10

# example name backup_20170404_1553.tar.gz 
TIME=$(date +%Y%m%d_%H%M%S)
FILENAME=backup_$TIME.tar.gz
SRCDIR=/var/lib/jenkins
#DESTDIR=~/jenkins_backup
#cd $DESTDIR
tar -cpzf $FILENAME $SRCDIR

# delete more NUMBER_LOG_FILES files
TAR_FILES=$(ls -txr1 *.tar.gz)
NUMBER_TAR_FILES=$(echo "$TAR_FILES" | wc -l)
if [ $NUMBER_TAR_FILES -gt $COUNT_OLD_TAR ]; then
        rm $(echo "$TAR_FILES" | head -n -$COUNT_OLD_TAR)
        logger "удаление старых tar фалов"
fi