Installation and usage
Installation is done by launching
This program looks slightly old, so I tested it first on old GNOME 2 system.
I tested your script on pretty old Ubuntu 11.04 with cool and nice Nautilus 2.32. It works here as expected. It creates icon on desktop (on click it opens file selection dialog) and drop-down menu in Nautilus (Scripts->Check hash).
After object selection it asks for checksum methods
and shows calculated checksums
What we have on modern Ubuntu:
on Ubuntu 14.04 LTS, 16.04 LTS and 18.04 LTS it works from desktop-shortcut, but does not work from Nautilus drop-down (there is no Scripts section here in Nautilus).
But you can make it working by copying script file to the GNOME3 location:
mkdir -p ~/.local/share/nautilus/scripts
cp ~/.HashCheck/Check\ hash ~/.local/share/nautilus/scripts
on Ubuntu 14.04 LTS, 16.04 LTS and 18.04 LTS with MATE DE and Caja file-manager it fully works out-the-box.
According to its readme file it can be removed by running the same
If it does not work you can remove it manually:
rm -rf /home/$USER/.HashCheck
rm "/home/$USER/.gnome2/nautilus-scripts/Check hash"