There is also "su -p", which stands for "preserve". You need this, if you want use graphical applications as a normal user, which need root rights (for example wireshark or editing config files with kwrite, with owner "root").
I remember, there was "sux" in earlier times (dunno if it was a SuSE thingi or in debian, too), and as far as I remember, it was a wrapper for su in X (same as "su -p" now). However, I strongly belive, sux is no more used any more and dead. Best regards Hans > "su-" doesn't exist. You have to put at least one > space between "su" and "-" for it to work. > > Replying to your question: no, it is not better. > Nor it is worse. Just another tool. > > Cheers