The most arcane shell commands and options are explained with plenty of examples. “Here” documents, a way to feed input to a script or command within the script itself, are explained thoroughly.

If you're not yet comfortable with writing scripts on Unix and Linux systems, this post might get you off to a healthy start.

The original shell was simple but as people started to use Unix for application development and scripting, it was too limited. It didn’t have variables, it didn’t have control flow, and it had very ...

Shell scripting is one of those skills that are absolutely invaluable on especially UNIX and BSD-based systems like the BSDs, the two zillion Linux distributions as well as MacOS. Yet not every ...

Unlike shell scripts on Unix systems, batch files are run by typing their names without their extensions. So to run a batch file named mapdrive.bat, you would type only “mapdrive”.

The URCF provides support for computational research at Drexel. These workshops are open to all members of the Drexel community, and will be useful for anyone interested in using computation in their ...

A new system, PaSH, has been developed to make computer programs run faster while also delivering accuracy in the Unix shell. The Unix shell is a 50-year-old programming environment that is still ...

For instance, if 20,000 lines through a certain file, the script breaks, instead of re-running the script from the start, tail can be used to read only from the line on which the script failed. There ...

To see how associative arrays work, we’re going to look at both the Korn shell and Perl, though only the newest version of the Korn shell (referred to as “korn93”) supports associative arrays.