How can I create a symbolic link in Terminal?
┌── ln(1) link, ln -- make links
│   ┌── Create a symbolic link.
│   │                         ┌── the optional path to the intended symlink
│   │                         │   if omitted, symlink is in . named as destination
│   │                         │   can use . or ~ or other relative paths
│   │                   ┌─────┴────────┐
ln -s /path/to/original /path/to/symlink
      └───────┬───────┘
              └── the path to the original file/folder
                  can use . or ~ or other relative paths




$ echo content &gt; original
$ ln -s original symlink
$ ls -la original symlink
-rw-r--r--  1 grgarside  staff    8 28 Jan 18:44 original
lrwxr-xr-x  1 grgarside  staff    8 28 Jan 18:44 symlink -&gt; original
$ cat symlink
content


For more information about ln(1) see the man page.

The path to the symlink is optional; if omitted, ln defaults to making a link with the same name as the destination, in the current directory:

$ cd ~/Documents
$ ln -s ../Pictures
$ ls -l Pictures
lrwxr-xr-x  1 user  staff  11 Feb  1 17:05 Pictures -&gt; ../Pictures


To create a symlink to replace a system directory (e.g. if you want to have /Users pointing to another disk drive), you need to disable System Integrity Protection. You can re-enable it after the symlink is set up.