Unix/Linux tips and short cuts:

- Drag holding the left mouse button down, and drop by pressing the middle button.

- 'Control-a' takes you to the start of the line you are typing, and 'control-e' to the end. This can be useful for long commands.

- The up arrow will show you the previous command. Then again, and you will get the one before that... and so on.

- Type 'history' to get a list of the previous N commands.

- 'mkdir -p' to make a chain of directories - ie a directory several 'branches' removed from the PWD. Eg:
	mkdir somedirname # this is ok, because there are no intermediate branches.
	mkdir aname/morestuff/bozo # wrong - generates an error.
	mkdir -p aname/morestuff/bozo # correct.

- Try 'ls -1' (that is a minus one) or 'ls -lF' (minus ell capital-eff) instead of simple 'ls'.

- A powerful 'rm' command: 'rm -rf <name>' removes ALL the files in ALL the branches above <name>; removes the branches themselves; then finally removes <name>. Use it with caution!!