.bashrc

y3dips@heaven:~$ vi .bashrc

---cutted---
alias ll='ls -l'
alias la='ls -a'
alias un='uname -a'
---cutted-----

y3dips@heaven:~$ bash
y3dips@heaven:~$ un
Linux heaven 2.6.10-5-386 #1 Fri Jun 24 16:53:01 UTC 2005 i686 GNU/Linux
y3dips@heaven:~$ la
addres .gksu .lock NETCFSetup.msi .sversionrc
.adobe .gnome _temp exploits .gnome2 .ntrc_2 .themes

old trick but phun enough ,just simplify your command !