https://bugzilla.suse.com/show_bug.cgi?id=1187209 https://bugzilla.suse.com/show_bug.cgi?id=1187209#c2 Stanislav Brabec <sbrabec@suse.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Flags|needinfo?(sbrabec@suse.com) | --- Comment #2 from Stanislav Brabec <sbrabec@suse.com> --- This is expected behavior, as documented in the su(8). For backward compatibility, su defaults to not change the current directory and to only set the environment variables HOME and SHELL (plus USER and LOGNAME if the target user is not root). It is recommended to always use the --login option (instead of its shortcut -) to avoid side effects caused by mixing environments. So if you want a clear environment, use su --login. XDG_RUNTIME_DIR is kept from the previous environment. And it is actually set by the desktop environment, so even if you clear it manually, if would not be set. So su keeps most variables from the previous environment. Please note that su --login reads profile, so the variables may be reset by that. In opposite to that, sudo drops all environment variables except SUDO_EDITOR, VISUAL, EDITOR and eventually HOME (with -H). Behavior of both tools can be modified. For su: /etc/default/su /etc/login.defs Regarding PATH, it was not always the default: * St dub 04 2018 sbrabec@suse.com - su.default: Set ALWAYS_SET_PATH default to "yes" (bsc#353876#c7); add one-time wrapper forcing ALWAYS_SET_PATH on upgrade. For sudo: It is heavily configurable, see sudoers(5). -- You are receiving this mail because: You are on the CC list for the bug.