savageorange said:
cut -d \ -f1 is more succinct than this sed incantation.

And filehash=$(md5sum /tmp/autocheck.json); filehash=${filehash%% *} is more succinct than that, if you don't mind the two stage processing.

(missed the edit window)

savageorange said:
And filehash=$(md5sum /tmp/autocheck.json); filehash=${filehash%% *} is more succinct than that, if you don't mind the two stage processing.

(missed the edit window)

Actually is that wrong? You are running on a non-gnu system, since md5sum is returning entries with the * binary marker without you giving the --binary option. Are you attempting to rename only those files that are detected as binary?

(.. missed the edit window again.)