I am not very experienced in the use of the command line but I have been impressed by what you can do with it. I also like coming across command line tips and tricks that make life easier and more fun. I will fill this page with the ones I like best.
If any of your folder names contain spaces (let’s say you have named a folder “Proposal Writing”) you can use the tab button after pressing the first few characters.
This will then “fill in” the rest of the folder name for you. For example, type
cd ~/Docu TAB fills in cd ~/Documents/
hit ENTER then type
cd Pr TAB
and it will fill in the rest to take you to ~/Documents/Proposal\ Writing/
then hit ENTER and you will be in your “Proposal Writing” folder.
StackExchange is a good place to find tips like this:
You can use alias to speed navigation
alias wdoc='cd ~/Documents/PhD/docs'
Tom Ryder has a few more navigation tips here
A very convenient way of making navigation easier is provided by autojump.
Here is a page of Mac specific tricks for the command line.
There are also some fun geeky things you can do with the command line.
This Bash guide is reputed to be the best.
I use iTerm2 as a Terminal replacement on my Mac. It has a lot of cool features.