This is a very basic Perl question, concerning replacing one value in a file with another. You will find many such questions here - some even this week. That should be enough to get you started.

Your problem is only slightly complicated because you need to deal with encrypted passwords. You will need to find out what method is used (MD5? SHA? DES?), and locate the Perl module that will perform that function. Search CPAN here to find them. Perl has the crypt() function that uses DES, so you may not need a special module.

Dum Spiro Spero

In reply to Re: replacing password in a file by GotToBTru
in thread replacing password in a file by manasmita_nayak

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