Terminal Tips: 5 ways to navigate with ease

There's also the Bash cd alias: cdots (which uses TAB completion).

(See the links on http://codesnippets.joyent.com/posts/show/1690 )

#1 is going to be confusing for anyone who slightly benefits from this post.
~ is a short cut for your home directory

$ cd /Users/yourshortname/Desktop

is the same as

$ cd ~/Desktop

but the best trick is left out, and should be #1 of the "must know":

$ man `thing you want to learn about'

you missed my favorite

open .

which opens a finder window for the directory you are currently in. Helpful when you want to send a file via email or use the finder's open with... dialog.

ls -alrt

shows the file list in reverse chronological order with the latest files at the bottom of the list

helpful if you have a large directory and need to see which files changed last

Whoa! All change... I typed that last post - old style... Now New Style TUAW!
I like it guys, well done

And a few more...

1) use semi-colon ; to enter multiple commands, one of my favourites is "clear;ls"

2) "pwd" will print working directory in case you get lost in a deep path

3) "cd" on it's own will return you to your home directory

4) "ls -a" will also show hidden files

5) "ls -al" will also show hidden files in long format

6) "open ." will open the current directory in a finder window

7) TAB will autocomplete a path for you. e.g from your home folder try "cd Des"then TAB. "cd Desktop" will be filled in (if not, see below...)

8) If there are multiple possible matches, there will be a system beep, pressing TAB again will list all matches. e.g. try "cd D" then press TAB. Beep. Now press tab again, Desktop/ Documents/ Downloads/ are listed.

9) Tip 8 works when you're entering any bit of a path. E.g. try "cd Library/P" then press TAB twice. Usual beep plus a list of things that start with P inside Library.

10) Remember that everything is case sensitive, so "p" is not the same as "P"

Nice feature is the ability to drag a folder or item from the finder to the terminal window to get it's unix path. Try cd (drag and drop a folder from the finder.)

A few more tips:

1) Even easier than "clear": just hit Ctrl-L to clear the Terminal screen.
2) Typing "!!" then enter will repeat the last command you typed.
3) Up/down arrows scroll through your command history.
4) Ctrl-W = delete previous word
5) Ctrl-U = delete entire line
6) Ctrl-K = delete from cursor to end-of-line
7) As mentioned in the article, "ls" will list files in a directory. "ls -l" [that's a lowercase L] will give you a long format listing.

Why use the 'clear' command when you can just press command-k to clear the scrollback? All clear does move the prompt to the top.

I think a better/quicker alternative to #5 is simply ⌘K, which clears the scrollback.