If you want to schedule to run a command or script periodically, crontab will be a very useful tool. To add a command or a script to the crontab schedule, the command you need to use is:
sudo crontab -e
on 01/06/2013 – Made popular on 01/06/2013
I have a crontab file at /etc/crontab. I didn't place it there, it was already there, along with a lot of other files in /etc. However, when I type the command crontab -e, it creates a new file. I want it to look for crontab in /etc.
the default permission of crontab file are for roots, on my office machine in which Enterpise Linux 5 is install, i had seen the permssion are given to oracle:dba, anyways i found an issue when im trying to schedule a task from oracle user by using crontab -e and when i press :wq to save and quit, i end up with an error.
which is something like this :
I have to verify the integrity of a ISO image that is downloaded periodically on my PC. In order to do that, I've written a bash script that use the command md5sum with the aim to match the generated code with the default one created with the SIO image.