====== New Process Authentication Group with ''kpagsh'' ======

By calling ''kpagsh'' you create a new PAG "Process Authentication Group" with an own (new) Credentials Cache, so neither your old Kerberos Tickets nor AFS Token are available. Since your home-directory lies within the AFS, you don't at the moment have access to it -> the shell ''bash'' can't read the .bashrc in your homedir.

=> ''bash: /afs/math.uni-hamburg.de/users/.../.bashrc: Permission denied''

Therefore you need to obtain new credentials that are appropriately tuned to the intended usage by calling ''kinit''.