nixpkgs/pkgs/os-specific/linux/procps-ng
Alexey Lebedeff 86b097432a procps: enable systemd support when available
`ps` can show various systemd-related information, like a unit to
which a process belongs. But when it's not compiled it, it shows only
'?' in such fields.

Can be tested with:

    ps -o unit= ax
2018-07-27 10:41:42 +02:00
..
default.nix procps: enable systemd support when available 2018-07-27 10:41:42 +02:00