I have noticed that the bash implementation in Mac OS X Lion is different to my Ubuntu and SUSE integrations. The thing I miss most are some aliases that makes the life much easier. But he bash shell gives you everything you need to get rid of this problem.
Just add a file called “.profile” in your home folder and add missing commands:
Now use your beloved text editor and add your aliases and path.
alias ll="ls-la" alias ld=ls -ld" alias gohome="cd ~"
To export a path to your script collection or any other executable just add:
export PATH=$PATH:<my folder I want to export>