Error codes
===========

.. code-block:: none

    100 - unspecified error
    
    101 - file not found
    102 - directory not found
    103 - executable not found
    104 - variable not found
    
    105 - env unpacking failed
    106 - se copy error
    107 - killed by batch system
    108 - output invalid
    
    120 - lower space limit reached
    121 - upper space limit reached
    122 - min size failure
    
    123 - user intervention requested
    
    >125 - reserved by POSIX