-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Mon, Jan 16, 2017 at 11:42:17AM -0500, kamaraju kusumanchi wrote: > On Mon, Jan 16, 2017 at 4:42 AM, <to...@tuxteam.de> wrote: > > -----BEGIN PGP SIGNED MESSAGE----- > > Hash: SHA1 > > > > On Sun, Jan 15, 2017 at 09:47:40PM -0500, kamaraju kusumanchi wrote: > >> How can I find out the display manager currently running on a machine > >> from the command line? > > > > Hm. How do you know there aren't two running? Or fifteen? > > Thanks for the detailed reply, Tomas. > > For the first round, I am happy if I can get the display manager from > which the current user's session is initiated from. > > Background on why I need this: > I am developing a script[1] that gathers relevant system information > depending on what issue a debian-user is facing [...]
That sounds pretty exciting :-) One building brick (assuming Debian context) might be to start from the dependencies of the virtual package manger: | tomas@rasputin:~$ aptitude show x-display-manager | No current or candidate version found for x-display-manager | Package: x-display-manager | State: not a real package | Provided by: gdm3, kdm, lightdm, lxdm, nodm, sddm, slim, wdm, xdm Next step would be to infer the name of the running binary (might well be some of them install several binaries in /usr/bin) and search for that in the process list. I ask myself whether there's some giveaway in its /proc/<pid> directory. Regards - -- tomás -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iEYEARECAAYFAlh9N1MACgkQBcgs9XrR2kazEwCeMd/JEw3UCkRYuKQkXg4VZbUm FJkAnRxEtXRe/BFNIvAlvx540KiuOIAM =I716 -----END PGP SIGNATURE-----
