- file readlink name
Returns the value of the symbolic link given by name
(i.e. the name of the file it points to). If name
isn't a symbolic link or its value cannot be read, then an error is returned. On systems that don't support symbolic links this option is undefined.
See also edit
GNU coreutils provides "readlink -f", which outputs the canonical location for a file. Here's a TCL proc that does the same:http://ynform.org/w/Pub/TclFileCanonicalize
(Dead link as of 12-02-2014)