MPlayer is my media player of choice. It is available for Windows and Linux, and plays most about every file format in a completely borderless window (a feature I miss in vlc, totem, kmplayer etc.). Here you can find useful configurations to maximise your viewing pleasure:

addthis_url = ‘http%3A%2F%2Fmartin.ankerl.com%2F2006%2F06%2F10%2Fpimp-my-mplayer%2F’;
addthis_title [...]

If you have a large Subversion repository and want to back it up using as few space as possible, use this command (replace /repo with your actual repository path):

addthis_url = ‘http%3A%2F%2Fmartin.ankerl.com%2F2006%2F05%2F31%2Fcompact-subversion-backups%2F’;
addthis_title = ‘Compact+Subversion+Backups’;
addthis_pub = ”;

This is how I mirrored my subversion repository over a SSH connection:
svnadmin dump /path/to/repository |ssh -C username@servername ’svnadmin -q load /path/to/repository/on/server’
Before this works you need to log in on the server servername and create a repository with e.g. svnadmin create /path/to/repository/on/server.

addthis_url = ‘http%3A%2F%2Fmartin.ankerl.com%2F2006%2F01%2F24%2Fsvnadmin-dump-and-load-over-ssh%2F’;
addthis_title = ‘Svnadmin+Dump+And+Load+Over+SSH’;
addthis_pub [...]

Screen is like VNC for the console.

screen Starts a new session
C-a d Detaches from session
screen -ls List all running sessions
screen -r Reattaches to a session

addthis_url = ‘http%3A%2F%2Fmartin.ankerl.com%2F2005%2F11%2F17%2Fscreen-linux-tool%2F’;
addthis_title = ‘Screen+%28Linux+Tool%29′;
addthis_pub = ”;