The shasum
is just a wrapper for either shasum5.12
or shasum5.16
for perl
v5.12 or perl
v5.16.
Therefore, place the link in /usr/bin
(instead of /usr/local/bin
) and create links for the other two version specific ones too like this:
cd /usr/bin ln -s shasum sha1sum ln -s shasum5.12 sha1sum5.16 ln -s shasum5.16 sha1sum5.16
Now it works:
bash-3.2$ sha1sum -c files.sha1sum smallData.txt: OK