@cindex environment variables in file names
@cindex expansion of environment variables
+@cindex @code{$} in file names
+@anchor{File Names with @samp{$}}
@samp{$} in a file name is used to substitute environment variables.
For example, if you have used the shell command @command{export
FOO=rms/hacks} to set up an environment variable named @env{FOO}, then
Likewise, quoting with @samp{/:} is one way to enter in the minibuffer
a file name that contains @samp{$}. However, the @samp{/:} must be at
-the beginning of the minibuffer in order to quote @samp{$}.
+the beginning of the minibuffer in order to quote @samp{$}. (For
+another way of quoting @samp{$} in file names see @ref{File Names with
+@samp{$}}.)
You can also quote wildcard characters with @samp{/:}, for visiting.
For example, @file{/:/tmp/foo*bar} visits the file @file{/tmp/foo*bar}.