When attempting to run a task that utilizes a PREP_PROCESS and UNIXCMD, you see the following error(s):
Release : 12.3
Component : AUTOMATION ENGINE
This is due to the command being run returning no results; for example, an ls of a path/file combination that does not exist (ls /home/automic/test/*nofiles*) can cause this.
Confirm the command being issues to the UNIXCMD is valid and has a valid return.