Debian apt-get pinning

The aim of this article is to explain how to install Debian packages from different releases. As I’m writing this, I’m running wheezy and I’d like to install few packages from jessieĀ (currently testing).


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Check if PID exists on Linux

A simple function that will scan /proc file system and check if PID exists. If name is provided, it will also check the command name. Function returns TRUE if process was found (and name matched if specified) or FALSE if no such process ID exists.

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