I'd got a habit of clearing /tmp directory, after all it is "storage with a short lifetime" (What is the difference between /tmp and /var/tmp?). Recently I've noted one app does not start fully, as answered in https://stackoverflow.com/a/31612672/5499118. After some search I've found more about socket file What is `/tmp/.X11-unix/`?. I'm just curious, why put X11 socket type file in /tmp? How did it came into Unix?
How can I move it somewhere in a way to preserve full functionality? (renaming .X11-unix resulted in same issue as deleting). Recreating it by python -c "import socket as s; sock = s.socket(s.AF_UNIX); sock.bind('/tmp/.X11-unix/X0')" from https://serverfault.com/questions/358866/create-unix-named-socket-from-the-command-line did not help to resolve the error.
