Saving an output of PostgreSQL query to a text file

In PostgreSQL database it is possible to save / export and results of a database query to a simple text file. By default all query result are displayed on the screen. This default behavior can be overwritten by \o command:
postresql=> \o /path/to/your/text/file.txt
postresql=> postgresql query ( here place your query )
postresql=> \o ( set [...]

VMware arrow keys problem on Ubuntu

After power up my vmware virtual machines on the Ubuntu I have had a problems using arrow keys when my mouse pointer was captured by the console. Could no move at all and I had to use and Num pad on my keyboard to move around which was really annoying since I could not [...]

101 howto start with opencv and computer vision on ubuntu linux

101 howto start with opencv and computer vision on ubuntu linux