Next: Redirection, combining commands optional,
- Command line completion: if you are in the middle of
typing a long file name, hit the Tab key to automatically
complete that name, if only one file has that name
- re-executing commands: press the up arrow key to
get your previous command. Keep hitting it to get more prior commands.
- If you want to go to a subdirectory, type only that directory
after cd, instead of the whole path.
- Typing cd .. gets you to the parent directory (one step
higher in the directory tree).