Job control

[toro-nicolas]

Add job control :

• &
  When appended to a command, it runs the command in the background.
  This allows you to continue using the shell while the command executes asynchronously.
  For example, "command &" will run command in the background.
• fg
  Brings a background process into the foreground.
  If you have a process running in the background, you can use fg to bring it back to the foreground and make it the active process.
  For example, fg %1 will bring the job with job ID 1 to the foreground
• bg
  Moves a foreground process to the background.
  If you have a process running in the foreground, you can use bg to move it to the background and allow it to continue running while you do other tasks.
  For example, bg %1 will move the job with job ID 1 to the background.