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Process Management

In Linux processes can be of two types:

• Foreground Processes :
  depend on the user for input also referred to as interactive processes
• Background Processes :
  run independently of the user referred to as non-interactive or automatic processes

Mainly the practical aspects of process management will be covered.
In theory, process management is a vast topic and covering it in its entirety is out of scope for this tutorial.

• Shell commands

  • Displays your currently active processes :

    > ps

  • Displays all running processes :

    > top

  • Kill a process id pid :

    > kill pid

  • Kill all processes named UnResponsiveProg:

    > killall UnResponsiveProg

  • Displays all stopped or background jobs & resume a stopped job in background :

    > bg

  • Brings the most recent job to foreground :

    > fg

    • Brings a specific job n to foreground :

      > fg n

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