Command to get current user of the notebook ?
The only command I found :
user = DATA.split('/home/sageservice/nbfiles.sagenb/home/').split('sage_notebook.sagenb/home/').split('/');
parses a path to the current worksheet and returns the user which owns the current worksheet. This name may be different of the current user, in the case of a shared worksheet. The username I am looking for is in fact the one that is displayed on the top line of the screen...