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Do NOT Use This Perl Module: Passwd::Unix


Posted by Artem Russakovskii on April 22nd, 2008 in Linux, Programming

Updated: April 29th, 2008

Update: The author of the module contacted me the same day and promised to fix it in the next version. Version 0.40 was indeed on cpan as promised, but I haven't tested it yet.

Passwd::Unix will corrupt your /etc/shadow file and rearrange login names and their corresponding password hashes.

The current version of Passwd::Unix corrupted my /etc/shadow upon only
calling the passwd() function. Immediately users started to report not

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2

How To Delete All Messages From A Folder In Pine


Posted by Artem Russakovskii on March 23rd, 2008 in Linux

Pine is a UNIX command line mail application. So how do you delete all messages in a folder?

The combination is 

1

; A A D

If after pressing ; you see

1

[Command ";" not defined for this screen. Use ? for help]

then you don't have a check in the "Enable aggregate command set" settings checkbox. To enable it, go to the…

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5

Watch – A Useful Linux Command You May Have Never Heard Of


Posted by Artem Russakovskii on August 4th, 2007 in Linux

Updated: November 9th, 2007

How many times did I want to watch a directory waiting for a file to appear in it? Constant ls, for example, quickly got boring. A quick Perl script that would reload ls every 5 seconds… yeah it works but it takes a while to type up, and often enough I'm too lazy for that. And then I found 'watch' – a utility that comes with most *nix distros. Look…

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