Thanks to Werner for this tip:
Sometimes you want to delete some stuff before uploading your current Seagull project to your webserver.
Here is a little one-liner to delete all unused language files except german and english ones:
find . -path '*/lang/*' ! -name 'german*' ! -name 'english*' -exec rm {} \;
Use at your own risk in modules directory, try without -exec parameter first to see what files are found.
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