If you have followed the automatic method to install the script, then you can automatically uninstall the script.
There are two methods:
Use the script itself to uninstall the script.
gupload -U or gupload --uninstall
This will remove the script related files and remove path change from shell file.
Run the installation script again with -U/–uninstall flag
curl --compressed -Ls https://github.com/labbots/google-drive-upload/raw/master/install.sh | sh -s -- --uninstall
Yes, just run the installation script again with the flag and voila, it’s done.
Note: Above methods always obey the values set by user in advanced installation.