Possible Duplicates:
Should I learn Perl, and why?
When should I use Perl CGI instead of PHP (or vice versa)?
Background
I'm currently working as a web developer and have knowledge of HTML, CSS, PHP, MySQL, JavaScript (mainly through jQuery) and Ajax.
I recently entered into the world of Flash and ActionScript and came across some Perl, which was controlling a scoreboard system by editing a text file.
My colleague has also used Perl to write a script to backup our MySQL databases every day and store them online. He has moved on and I have been tasked to maintain the script. As such, I will need to learn Perl.
Question
As a web developer, using the above languages and techniques, would Perl be a useful addition to my proverbial toolbox, or is there a more appropriate language to learn that would be more beneficial?
If Perl is for me, what would you suggest are good resources, I would normally used online resources to learn, but are there any particularly beneficial books?