If you mean that your path and aliases aren't maintained in terminals, then you need to do two things:
1. Open your terminal (xterm, rxvt, aterm, eterm, . . . ) with the -ls option (edit your menu file).
2. Create a .bashrc file in your home directory. This is where I define my aliases as well as a custom bash prompt for root (but that's another story).
Enjoy!
--- Cerbere
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