Run dos2unix to fix eol and let bash parse the file
This is because
$ nexpy /HFIR/HB2A/shared/McStas_MIDAS_nexus_simulations/Si_Ge113_100000000/mccode.h5
-bash: /usr/bin/nexpy: /usr/bin/bash^M: bad interpreter: No such file or directory
(╯°□°)╯⏜ ┻━┻ ⏜ 126
was happening