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If you've got a website that's heavy on your web server, you might want to run some processes like generating thumbnails or enriching data in the background. This way it can not interfere with the user interface. Linux has a great program for this called cron. It allows tasks to be automatically run in the background at regular intervals. You could also use it to automatically create backups, synchronize files, schedule updates, and much more. Welcome to the wonderful world of crontab. Crontab The crontab (cron derives from chronos , Greek for time; tab stands for table ) command, found in Unix and Unix-like operating systems, is used to schedule commands to be executed periodically. To see what crontabs are currently running on your system, you can open a terminal and run: sudo crontab -l To edit the list of cronjobs you can run: sudo crontab -e This wil open a the default editor (could be vi or pico, if you want you can change the default editor) to let us manipu...

Ubuntu is an ancient African word meaning 'humanity to others'. It also means 'I am what I am because of who we all are'. The Ubuntu operating system brings the spirit of Ubuntu to the world of computers. Package Installation and Updates Apt and Package Basics Most new users will use the Synaptic Package Manager to install packages. These instructions are for installing packages from the command-line Terminal. Terminal can be started: Menu -> Applications -> Accessories -> Terminal Install packages: sudo apt-get install packagename Example: sudo apt-get install mpd sbackup Remove packages: sudo apt-get remove packagename To remove all dependencies: sudo apt-get autoremove Example: sudo apt-get remove mpd sbackup Search for packages: apt-cache search <keywords> Examples: apt-cache search Music MP3 apt-cache search "Text Editor" Update the apt package database after adding/removing repositories: sudo apt-get upd...