On Tue, Feb 25, 2020 at 01:23:19PM -0700, ghe wrote: > What does, in /usr/bin/X11, 'X11 -> .' mean?
You mean this: wooledg:~$ ls -l /usr/bin/X11/X11 lrwxrwxrwx 1 root root 1 Nov 23 2016 /usr/bin/X11/X11 -> . Note how unclear your description is, and how clear mine is. Show the actual COMMAND you run and the actual OUTPUT of the command. Choose a command that gives you the desired output, which is clear and concise. A few years of experience with the basic Unix tools should give you some facility in this department. This is a symbolic link. You can tell because of the "l" (for "link") in the very first column of ls -l's output. Now... your question, I take it, is, "WHY on earth is there a link from /usr/bin/X11/X11 to /usr/bin/X11?" Probably historical reasons. Backward compatibility with something. Why do you care? Just ignore it.
