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Compose key is a great way way to write all these ©–®—… stuff. It's really MUCH more handy than the windows "alt+0169" method.

Is there a way to define additional sequences? E.g. I'd like to have "Compose+-->" result in "→"

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anybody knows how to make this work also on ubuntu 13.04? I do not manage to have it use the X11 files, nor to understand where the gnome configuration files are hiding (from my view!). – mariotomo Jul 30 '13 at 7:03
up vote 8 down vote accepted

The Ubuntu documentation has some info about this. It looks like their instructions are fairly distribution-agnostic; however, I haven't tested them.

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Great, that's it! Thanks! :) In short, copy cp /usr/share/X11/locale/en_US.UTF-8/Compose ~/.XCompose the file tou your home dir and edit it. – kolypto Dec 25 '09 at 18:37
On Fedora 14 (and other versions), you'll also have to edit /etc/X11/xinit/xinput.d/none.conf and set GTK_IM_MODULE=xim so it'll stop ignoring ~/.XCompose. Of course, in order for changes to take effect, you'll have to log out and back in. See this post on for more info. – Joey Adams Dec 26 '10 at 7:22

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