After an unclean shutdown Steam borked and refused to start with the following error.
/usr/bin/steam: line 64: /steam.sh: No such file or directory
Simple fix is simple.
Head over to the /home/YOURHOME/Steam directory and run “./steam.sh”.
If you’re not in the beta you will get the force close box BUT you should now be able to launch the Steam client with “steam [url=steam://open/games]steam://open/games[/url]”