Make a local copy of a FITS image.
% mli_copy --help
% mli_copy
Usage: mli_copy ../S/20170420T101656.1_acm_sci.fits
arg1 = image to be copied locally
% # EXAMPLE
% ls
---- emtpy directory -----
% mli_copy /home/sco/A_wcsf/images/20180206T100533.3_acm_sci_proc.fits
% ls -lt
total 2352
-rw-rw-r-- 1 sco sco 2407680 Apr 10 12:36 20180206T100533.3_acm_sci_proc.fits
% mli_copy ./20180206T100533.3_acm_sci_proc.fits
% ls -lt
total 2352
-rw-rw-r-- 1 sco sco 2407680 Apr 10 12:36 20180206T100533.3_acm_sci_proc.fits
Notice that the second time we run this (a few minutes later), on the local image,
the original local image is not affected. The script simply exits and performs no further
tasks.