It''s part of the UUCP package. On 05/20/2015 02:03 PM, Ralf Mardorf wrote: > On Wed, 20 May 2015 20:55:16 +0200, Csányi Pál wrote: >> 1. I can't find to install the 'cu' utility neither on Arch linux >> repository nor in AUR. > https://www.archlinux.org/packages/community/x86_64/uucp/files/