Crontab
Crontab (CRON TABle)is a program that manipulates the CRON daemon, making it easy for users to schedule task and run programs/commands at pre determined periods of time. Crontab can also be considered a file witch contains commands that will be run by the system as the user that owns the crontab file. What is the purpose of Crontab? Cron is designed to maintain a list of commands that the system needs to run at a given time interval. For example if you have a script that generates statistics and needs to be run every couple of hours or everyday cron can do it for you. Or for example if you have a script that sends a newsletter every month you can use cron to run the script that sends the newsletter every month or week. crontab -l Lists the current cron jobs crontab -e Edit your current crontab file and ad/remove/edit crontab tasks. crontab -r Remove the crontab file. crontab -v Displays the last time you edited your crontab file. Example on how to set...