If you use the Tab autocomplete, the CapsLock key is often hit as well. Very annoying. To disable CapsLock for this session: xmodmap -e "remove lock = Caps_Lock" To ensure it is disabled at login: if [ "$PS1" ]; then # Disables the %&*! CapsLock button xmodmap -e "remove lock = Caps_Lock" ... fi in ~/.bashrc or /etc/bashrc (Fedora/RedHat/Centos) Thanks to Peter Bengtsson (peterbe.com)