I have my laptop connected to an external monitor, and I want the external monitor to be the primary display (i.e. with the menu bar displayed on it.) For some reason, there’s no GUI element to set this. I had to read a bunch of man pages, but when all else fails, trusty old xrandr to the rescue: vijayp@ike:~$ xrandr --output HDMI1 --primary In case you don’t know what your display is called, just run “xrandr” on...

When you get GPG errors when running apt-get update on your Ubuntu machine, you have to import the the appropriate keys. W: GPG error: http://ppa.launchpad.net lucid Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 4DEF31B9A9E345C0 W: GPG error: http://ppa.launchpad.net lucid Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY...

#1 IBM’s New to Linux Linux Introduction If you are brand new to Linux and have no idea what it is or what you can do with it, IBM’s Linux Introduction is worth checking out. This tutorial guides readers through everything they need to know to start working with Linux. The tutorial also provides links to hundreds of other articles, tutorials and training devices. #2 Professor Norm Matloff’s Beginner’s Guide to...

Windows creates in every folder with pictures a thumbs.db file. Linux doesn’t need them, so here is a simple command to get rid of them. sudo find /home/user -name Thumbs.db -exec rm {} \;

To remove empty directories in a directory structure use the following command : sudo find /begin/here -type d -empty -delete

To add you local printer in your Citrix Session edit the following file /usr/lib/ICACLIENT/config/wfclient.ini Under the section WFClient add the following lines DefaultPrinter = (here use the cups printer name for the printer you want) DefaultPrinterDriver = Citrix PCL 4 Universal Driver