Gnome-Control-Center (used by Unity and Gnome Shell) stores its key bindings in the per-user Dconf database directories /org/gnome/desktop/wm/keybindings/ and /org/gnome/settings-daemon/plugins/media-keys/ (source).
The easiest way to keep them across system re-installations is to keep the per-user configuration directories (~/.config or more specifically ~/.config/dconf/user for Dconf only). Most of the time it's not necessary or desirable to purge the per-user configuration files anyway.
If you can't or won't keep your old Dconf database you can use the dconf command to export (“dump”) parts of it into a file and import (“load”) it later. The relevant Dconf directories are
/org/gnome/desktop/wm/keybindings/ for pre-defined shortcuts and
/org/gnome/settings-daemon/plugins/media-keys/custom-keybindings/ for custom, user-defined shortcuts.
The following example saves the above Dconf directories to two files keybindings.dconf and custom-keybindings.dconf and then restores them from the same files:
Gnome-Control-Center (used by Unity and Gnome Shell) stores its key bindings in the per-user Dconf database directories
/org/gnome/desktop/wm/keybindings/
and/org/gnome/settings-daemon/plugins/media-keys/
(source).The easiest way to keep them across system re-installations is to keep the per-user configuration directories (
~/.config
or more specifically~/.config/dconf/user
for Dconf only). Most of the time it's not necessary or desirable to purge the per-user configuration files anyway.If you can't or won't keep your old Dconf database you can use the
dconf
command to export (“dump”) parts of it into a file and import (“load”) it later. The relevant Dconf directories are/org/gnome/desktop/wm/keybindings/
for pre-defined shortcuts and/org/gnome/settings-daemon/plugins/media-keys/custom-keybindings/
for custom, user-defined shortcuts.The following example saves the above Dconf directories to two files
keybindings.dconf
andcustom-keybindings.dconf
and then restores them from the same files:If you find that you export your keybindings often, it might be convenient to script the required steps.