Actually gnome-terminal display tabs as 8 spaces, and this is very annoying when you cat files or view diffs, is there some way to change this permanently?
Instead of writing out an explicit list of tabstops, you can also use implicit intervals:
tabs -n
This will set tabstops to occur every n
columns. For more information, check out the manpage for tabs at http://manpages.ubuntu.com/manpages/maverick/en/man1/tabs.1.html.