What is a good alternative to the sux command?

Solution 1:

I've been very sad too to see that there were no easy alternative to sux at first, but ended with this:

In /etc/pam.d/su, to forward xauth keys between users when calling su, add:
```
session  optional  pam_xauth.so
```
In ~olivier/.bashrc:
```
export $(dbus-launch)
```
(Not sure it is actually needed.)
And then a simple su olivier from my logged-in user.