I want to make a backup of my /var/lib/mysql and /var/www folders and save them as tar.gz files to my mounted network file server (uslons001).

Here is my bash file located in: /etc/cron.weekly/mysqlbackup.sh

#!/bin/bash
mkdir ~/uslons001/`date +%d%m%y`
tar -czf ~/uslons001/`date +%d%m%y`/mysql.tar.gz /var/lib/mysql
tar -czf ~/uslons001/`date +%d%m%y`/www.tar.gz /var/www
tar -czf ~/uslons001/`date +%d%m%y`.tar.gz ~/uslons001/`date +%d%m%y`
echo Backup Completed `date` >> ~/backuplog

Which works PERFECTLY fine when I execute it in a cmd shell but when I setup the cron job it never runs, so I'm not setting the cron job up properly. My cron job looks like this.

30 7 * * fri /etc/cron.weekly/mysqlbackup.sh

Which should execute at 7:30AM every Friday...

What am I doing wrong?

UPDATE1 - change the cron job line to the following:

    44 8 * * 5 /etc/cron.weekly/mysqlbackup.sh

with still no luck...is there a cron error log file that I can read to help pin point where the problem is?