Command-line Perl scripts can make adminstering a UNIX box easier by replacing certain commands with some routine scripts. Find out how to take advantage of this approach. Perl is everywhere. Most ...

Like most Linux users, I started out using a simple Bash script to configure the firewall policy on my Linux machines. Eventually, I got tired of writing the same code over and over again, so I ...

There are a lot of really nice scripting languages available to Unix admins, but Perl is still one of my favorites for doing any work that involves regular expressions — any text that you can describe ...

A similar Perl pie command might change Windows (DOS) style line endings (carriage return, linefeed) to Unix style line endings (linefeed only) or to replace other bytes in a file whether the file is ...

A number of options are available for Perl developers who want to reduce the amount of work and tedium involved in writing Perl CGI scripts that interact with a database server. Some of these ...

There are numerous ways to redirect standard error in a Perl script. You can redirect the output from one particular command, you can combine standard error with ...

Since I’m seldom in control of all the devices between myself and whatever system I am trying to reach, I often like to verify whether I will be able to connect to a particular port on the particular ...

A lot of information is available about individual files on a Unix system. For example, the ls -l command will display the permissions matrix and ls -i will display a file’s inode. But, if we want to ...

One of the delights in Bash, zsh, or whichever shell tickles your fancy in your OSS distribution of choice, is the ease of which you can use scripts. These can be shell scripts, or use the Perl, ...

The former second-class citizens of the programming world have leaped to the fore, changing the face of enterprise software development. With the rise of Web 2.0, scripting languages (also called ...