Do NOT Use This Perl Module: Passwd::Unix
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
being able to login.
After examining the situation, I found that Passwd::Unix rearranges all
users in /etc/shadow in some way, but it only does it to the
…
How To Delete All Messages From A Folder In Pine
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 main menu (M) -> Setup (S) -> Config (C) and scroll down to "Enable aggregate command set". Then press X (to check it), E (Exit). Now repeat the above.
Watch – A Useful Linux Command You May Have Never Heard Of
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 at this beauty [man watch]:
NAME
watch – execute a program periodically, showing output fullscreen
SYNOPSIS
watch [-dhvt] [-n ] [--differences[=cumulative]] [--help]
[--interval=] [--no-title] [--version]
DESCRIPTION
watch runs…
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