I'm a Perl novice and I'm trying to figure out the following: How do I get at all the files in a given directory AND in all of its subdirectories? I want to open each one of them, do some things to ...

Originally, this article was stored on a minimalistic web site. I, along with the thousands of users who use that site, use FTP to maintain the content. This used to mean that after making changes to ...

In my last article for Linux Journal's web edition, I discussed a web-based program that queried an SQL database and output a native Excel file. That article was based on a program I wrote for a ...

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 ...

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 ...