Using crontab to perfome dump

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http://stackoverflow.com – I am trying to perform a backup of my /home directory using crontab When I run my dump command in the terminal it works fine but when I try to run it using crontab it does not want to work. I work on a CentOS This is my command to run dump using crontab. It is suppose to run once a week, Friday at 8pm 0 20 * * 5 dump -0f /Mt/home.bck /home Any ideas why it does not work? When I look at the log file of cron it says: (root) CMD (dump -0f /Mt/home.bck /home) This message repeats every time the crotab is supposed to execute (HowTos)