For system-wide umask setting I edited "/etc/pam.d/common-session". session optional pam_umask.so umask=027
It doesn't have any effect. It does work on Ubuntu 16.04. I don't know why this won't work in Ubuntu 18.04.
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/etc/pam.d/login
, per instructions onman pam_umask
, and that didn't work either. – Enterprise Apr 21 '19 at 17:37