You can view current environment variables in bash with 'env'. This is similar to 'set' in windows.
Here is more information about setting environment variables that I found useful.
In case you didnt know, grep is really handy with the env command.
e.g. env | grep PATH
will only display the PATH variable or anything with PATH in it
You can do this too:
Here is a quick tip which I just rediscovered. If you want to find a file you can use "find / -name <your-file>" but this takes ages, if you do a "locate -u" a index of your filesystem is built and then you can just do locate <your-file> and it is super fast version of find.
Awesome. Thx dude.