Re: Help needed in Perl
You said you use Linux? What distro? Almost certaintly, PERL is already installed (though probably not the most recent version). Try typing 'perl' in the shell. If it does not give you an error message but says something like 'perl: no input files' or just has a blinking cursor on a clear field then PERL is installed.
You can create .pl files and write PERL code in them. Then, run them by typing 'perl <filename ending with .pl>'
Dump proprietary software and be free!