Newer to Linux now, after decades ago Unix in school. Have KL on MacBookPro on second partition and followed on line
instructions to get and install gnome-tweak-tool running OK.

But on old Dell Inspiron 1525, installed KL after flushing HD for full install, which is up and running, but all attempts to get and install the gnone-tweak-tool have failed, after following many on-line instructions carefully.

I modfied the etc/apt/sources.list per one instructions, and then sudo apt-get update, to update all and then sudo apt-get install gnone-tweak-fool and error amounts to gnone-tweak-tool not found.

I am a user in sudoers file for sudo use.

Any suggestions very welcome.