Sources :
- https://askubuntu.com/a/162714/868786
- https://lh.2xlibre.net/locale/en_US/
- https://lh.2xlibre.net/locale/fr_CH/
tested on Ubuntu 18.10
wget https://raw.githubusercontent.com/cbaconnier/ubuntu-locale-en_CH/master/en_CH
sudo localedef -i en_CH -f UTF-8 en_CH.UTF-8 -c -v
sudo mv en_CH /usr/share/i18n/locales/
echo 'en_CH UTF-8' | sudo tee --append /var/lib/locales/supported.d/en
sudo locale-gen
- Change the regional settings with the new locale in
Language Support>Regional Formatsand search forSwitzerland (English)
Next time you log in, the locale should be in use.