Here's a simple little thing that EVERYONE should do. In Android Terminal Editor, open up the settings, and tap "Command Line". Edit that line to be:
Code:
/system/bin/su -c /system/xbin/bash
Now you get a the convenient bash root shell when you open up the terminal, but you don't have to change the default system shell (which could potentially screw up other stuff).
If you don't like it, change it back to /system/bin/sh, but I suspect it won't take you long to get used to the lscolors, arrow-up to get to previous commands, being able to edit commands in-line, and being able to tab-complete filenames.