Monthly Archives: May 2010

Suspend or stop a foreground job with <Ctrl>-<Z>. This is useful if one wants to carry out other tasks in the shell and resume the current job later. The job will stop until one moves it back into the foreground … Continue reading →

Processes running in a shell are called jobs. One may have many jobs running from a single shell prompt. Jobs reading standard input and writing standard output are called foreground jobs; others are said to be running in the background. Each … Continue reading →

/dev/null is a special file called a null device. It contents are null. One can think of it as a sort of black hole whose constituents can never be reached or viewed. Subsequently redirect anything to /dev/null that you don’t … Continue reading →