/usr/share/eccodes/definitions/mars/grib.ewmo.cl.def is in libeccodes-data 2.0.2-5.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 | unalias mars.time;
unalias mars.step;
alias mars.number=perturbationNumber;
|