How to start using Git with Github as a Sysadmin

Some systems engineers and admins are reluctant to embrace version control, I aim to show it’s not a black art, and should be in the toolbox of all admins.

The simplest thing to say about using git with github is that they combine to provide tools and a place for storing your code, scripts, config files, allowing you track updates and recover previous versions.

This guide shows you how to install git on a Debian based system and how to start using it. This use case illustration is simple because everyone needs to start somewhere.

Continue reading “How to start using Git with Github as a Sysadmin”

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Conditionally setting DISPLAY variables in bash

A tiny snippet of useful bash shell code today, to help with setting your DISPLAY variable if integrating Cygwin/X into your Windows environment, add it to a .bashrc for effect.

Launching X apps from the ‘Cygwin Terminal’ is smoothed as a result.

#RT Check for XWin and set DISPLAY if present.

ps -a | grep -v grep | grep /usr/bin/XWin > /dev/null

result=$?

if [ “${result}” -eq “0” ] ; then

 export DISPLAY=localhost:0.0

else

echo “No X.org server running, DISPLAY not set.”

fi

Using .forward files and retaining a local copy

If your read your email on a platform able to utilise dot forward files (.forward), it’s useful to know that aside from adding a forward address to bounce mail onwards seamlessly, you can retain a copy at the original receiving host by constructing your .forward as below, where I show an excerpt from my system.

#cat .forward
\localusername
somebody@somehost.com

#