How to restore sources.list file on Ubuntu

I recently messed up with my Ubuntu 12.04 /etc/apt/sources.list file.
In order to restore it you need to run

software-properties-gtk

This will cause a window to appear,

I have chosen only Canonical-supported free and open-source software(main), you can choose other options you want.

This adds the following line to my blank/previously in-existent /etc/apt/sources.list

deb http://archive.ubuntu.com/ubuntu precise main

Now, run apt-get update and other apt-get commands as usual.

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Formatting JSON in Kate - KDE Editor

Some years ago, I wrote a post on Formatting XML in Kate - KDE Editor . This one below is for JSON format. Like the XML one this one also makes use of a tool installed on your machine and is invoked from Kate as a filter. TLDR; Kate is one awesome editor ( If you don't like Vim for its 'CLI'ness ) When working from the command line we can use a handy tool ' jq ' to format JSON files and pretty print them. Well, the good news is we can use the same from within Kate as well But it is a tedious task to use it when you have some content in Kate ( more so if it is an unsaved file ) and want to format it. Incase, you don't have jq installed, simply hit sudo apt-get install jq and that will install it for you. If you use jq you would do something like this, Save File ( MySavedFile.xml ) Go to Command Line cat MySavedFile.txt | jq '.' - > MySavedFile.txt and then reload our file in Kate . If you wish t...

Formatting XML in Kate - KDE Editor

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Now I Know That Technical Thing Too

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