Thursday, May 15, 2014

Converting a space delimited file to tab delimited

try this one liner
       cat file | tr ' ' '\t'

Monday, June 10, 2013

How to cut video using ffmpeg

You can cut a piece of video from a bigger video like this.

ffmpeg -ss 00:00:30 -t 00:00:05 -i source_video -vcodec copy -acodec copy newfilename 

Tuesday, May 28, 2013

skype 4.2 j on debian wheezy behind proxy

The new skype 4.2 on linux machines do not offer a configuration screen when you start it for the first time. If you are behind a proxy, you  are stuck.
 Here is the quick solution.
  Start skype. The EULA screen will come up. Accept it (at your own risk). The skype log in screen will come up.  Press Cntrol + O . The configuration screen will come up.