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 ...

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 ...

Despite the fact that MySQL comes with a rich set of functions, at some point you will find yourself wishing for some additional function or needing an advanced regular expression engine. To solve ...

In the December 2000 issue of Linux Journal, I reviewed the latest edition of the classic Perl text: Programming Perl, 3rd Edition (or The Camel for short). In that review, my advice to new Perl ...

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.

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 ...

I'd Like to write a perl program that changes the working directory of the user, not just for the duration of the code, but even afterwords (the user would still be able to hop around, of ...

In 1994, Jon Orwant, a graduate student at the Massachusetts Institute of Technology, learned the power of the Unix scripting language Perl. “I bet a friend a six-pack of beer that I could write an ...