CapsLock Remap Howto

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On most PC keyboards the Caps Lock key is where the Ctrl key should be. Whenever I get a new keyboard or laptop, I always pop off the key then take a razor blade and scrape off the "Caps Lock" print.

Basically you need to remap keycode 58 from "Caps_Lock" to "Control" in your keymap file, then load the keymap using loadkeys. Some people like to make it another Esc key.

The keymap files are stored in different places depending on your version of Linux. Just do a locate for "defkeymap". The keyboard maps in Ubuntu are stored here:


On Red Hat Enterprise 4 this file is stored here:


The following script takes care of this for Ubuntu Linux:

echo "transmogrify the Caps_Lock key into another Control key"
gunzip /usr/share/keymaps/i386/qwerty/defkeymap.kmap.gz
sed -i -e "s/Caps_Lock/Control/" /usr/share/keymaps/i386/qwerty/defkeymap.kmap
gzip /usr/share/keymaps/i386/qwerty/defkeymap.kmap
loadkeys -d

When running XWindows you need to modify the X11 key map using xmodmap. It is not sufficient to just modify the console keyboard mapping. Use xmodmap to load the following keymap file:

remove Lock = Caps_Lock
keycode 0x42 = Control_L
add Control = Control_L

These keyboard settings are not persistent after a reboot. You can edit the ... FIXME ...

I add this to my .bashrc file. This is a bit overkill since it will run this everytime I start a shell, but loadkeys and xmodmap takes no time at all, but it's harmless.

case "$TERM" in
    # X terminals
    if [ -f ~/.xmodmap ]; then
        xmodmap -quiet ~/.xmodmap 2>/dev/null
    # console
    LK=`which loadkeys 2>/dev/null`
    if [ -x "$$LK" ]; then
        loadkeys -d