I am working on a perl script where I would like to be able to write to two output files at the same time. The problem that I am running into is the first output file FILE will write fine but the ...

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 ...

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 ...

Over the years, I've probably created thousands of reports for customers and co-workers. Usually, I have a web-based program that generates reports in either html or comma-separated format. The html ...