Tips & Tricks

Rename files in the current directory to short unique names

ls|rename '$_ = $Main::number++'


If you create a custom keyboard shortcut (System->Preferences->Keyboard Shortcuts) for executing a command, the working directory of the command is set to /. If you do not like it, as I do with starting my Emacs, you can use the following command to change the directory:

/bin/sh -c "cd $HOME; /usr/bin/emacsclient -c -a ''"


  • Get the list of manually installed packages

    aptitude search '?installed?not(?automatic)' | awk '{print $2}'


  • How to invoke emacs from valkyrie? Set Src Editor in Options to:

      /usr/bin/emacsclient -n -a emacs +%n

Pavel Píša’s BDM driver

BDM driver

How to set access permissions

Create file /etc/udev/rules.d/m683xx-bdm with the following contents:

ACTION=="add", SUBSYSTEM=="m683xx-bdm", OWNER="sojka"
DEVPATH=="/class/m683xx-bdm/icd0", SYMLINK="bdm"

Replace “sojka” at the first line with your login name or use something like GROUP=”users” or MODE=”0666”. The second line accomplishes the creation of symlink /dev/bdm for your default device.


Login to remote server with local X terminal

  • If there is a remote display manager supporting XDMP and you are not behind NAT, start X server from command line

      X -query <host>
  • If you are behind NAT, you can tunnel X connection through ssh. From text console shell start:

      xinit /usr/bin/ssh <host> startkde -- :1

This will start KDE remotely on second (:1) local display.

  • To automate the previous command using KDM you can put the following to your ~/.xsession

      ssh <host> startkde

By selecting custom in the list of available X sessionsin in KDM, this file will be automatically executed on login. If you have you ssh keys protected by a password and ssh-askpass installed, you will be automatically asked for the password to the key.

Various Scripts