3

I typed x into bash, and some weird stuff happened.

If I do:

command -v x

I get this output:

/opt/X11/bin/x

looks like something to do with XCode, does anyone know how I could find more info? (There is 'No manual entry for x').

6

/opt/X11/bin/X (/opt/X11/bin/x) is a symbolic link to /opt/X11/bin/Xquartz.

The XQuartz project is an open-source effort to develop a version of the X.Org X Window System that runs on OS X. Together with supporting libraries and applications, it forms the X11.app that Apple shipped with OS X versions 10.5 through 10.7.

Visit the official site at https://www.xquartz.org

XQuartz supports running X11 apps in OS/X / MacOS, and from 10.8 onwards it is not installed by default anymore ; it has to be installed by the user.

  • 2
    More precisely, /opt/X11/bin/ X is a symlink to Xquartz, and HFS+ is case-insensitive by default. – Michael Homer Jan 27 '18 at 22:06
  • @MichaelHomer Corrected. Thanks, I knew it is case insensitive, but had no ideia it was that bad. ls -l x lrwxr-xr-x 1 ruiribeiro wheel 7 4 Dec 21:56 x -> Xquartz – Rui F Ribeiro Jan 27 '18 at 22:08
  • 3
    Obligatory Linus rant: cio.com/article/2868393/… – ilkkachu Jan 27 '18 at 22:45
  • 1
    @MichaelHomer From macOS 10.13, the filesystem is APFS which is also case-insensitive by default. – Ortomala Lokni Jan 28 '18 at 0:03

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