Monk_perl:

You can find just about everything at http://perldoc.perl.org:

• perlvar Predefined variables in perl
• perlrun Running perl, command-line arguments, ...
• perlfunc Functions found in perl (chop, chomp, etc.)

Also, if you're running perl at the command line, you can type perldoc perlvar to read the perlvar document (which is what I was referring to in my first reply). You can read about perldoc with the command perldoc perldoc which will give you some handy shortcuts, such as the one I use most: perldoc -f functionname which will give you the documentation for the function you specify.

Finally, of course, there's google. Giving it a search like perl difference between chop chomp will lead you directly to the answer to one of your questions. Never forget about google when you're in a hurry.

...roboticus

When your only tool is a hammer, all problems look like your thumb.