#!/bin/sh
# source file directory
srcd=/usr/local/elog/

# backup all files newer than 25 hours
date=$(date -d "-65minutes" "+%Y%m%d %H:%M")
# backup file directory
tard=/logbooks_backup
# backup tar file name
tarf=$tard/$(date +%a%H%M.tar)
rm -f $tarf
# do not backup files that match patterns in this file
excf=/usr/local/elog/utilities/exclude-logbooks
# create backup
cd $srcd
tar --ignore-case -X $excf --newer "$date" -cf $tarf . logbooks/*