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 ...

Bash is a Unix shell, or “command-line interpreter”, which is a tool that people who used a personal computer in the 1980s and early 1990s were all too familiar with, but younger computer ...

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.

Perhaps the primary disadvantage of Unix is the steep learning curve associated with using the software. Using the operating system to its full potential requires learning the Unix shell commands ...

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.

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.

Simply put, environment variables are variables that are set up in your shell when you log in. They are called “environment variables” because most of them affect the way your Unix shell works ...