Still others may be shell routines. The order that Unix systems use in evaluating the commands we enter is not solely dependent on our PATH variables.

Computer scientists have developed a new system to speed up computer programs in the Unix Shell. A new system, PaSH, has been developed to make computer programs run faster while also delivering ...

The popular Linux and Unix shell has a serious security problem that means real trouble for many web servers. Fortunately, a patch -- as source code -- is available.

Several methods to add menus and progress bars to shell scripts are explained. Floating-point math, number conversion and generation of random passwords and numbers also are covered. The volume ends ...

Introduction One particular frustration with the UNIX shell is the inability to easily schedule multiple, concurrent tasks that fully utilize CPU cores presented on modern systems.

A number of readers have recently asked how they set up and use filename completion in a variety of Unix shells. Since file completion does not work the same in every shell, we will examine how ...

What does Unix shell account actually mean? Find out inside PCMag's comprehensive tech and computer-related encyclopedia.

This bug, baptized "Shellshock" by Security Researchers, affects the Unix command shell "Bash," which happens to be one of the most common applications in those systems. That includes any machine ...