[SUS-2374] checking if cd commands succeed before executing dependent code
https://its.cern.ch/jira/browse/SUS-2374 !!! DO NOT JUST DOUBLE CLICK THE SCRIPT READ FIRST !!!
Edited by Dominik Wassmer
https://its.cern.ch/jira/browse/SUS-2374 !!! DO NOT JUST DOUBLE CLICK THE SCRIPT READ FIRST !!!