/usr/bin/readlink

Usage: /usr/bin/readlink [OPTION]... FILE...
Print value of a symbolic link or canonical file name

  -f, --canonicalize
         canonicalize by following every symlink
         in every component of the given name recursively;
         all but the last component must exist
  -e, --canonicalize-existing
         canonicalize by following every symlink
         in every component of the given name recursively;
         all components must exist
  -m, --canonicalize-missing
         canonicalize by following every symlink
         in every component of the given name recursively,
         without requirements on components existence
  -n, --no-newline
         do not output the trailing delimiter
  -q, --quiet
  -s, --silent
         suppress most error messages
         (on by default if POSIXLY_CORRECT is not set)
  -v, --verbose
         report error messages
         (on by default if POSIXLY_CORRECT is set)
  -z, --zero
         end each output line with NUL, not newline
      --help
         display this help and exit
      --version
         output version information and exit

Report bugs to: <bug-coreutils@gnu.org>.
GNU coreutils home page: <https://www.gnu.org/software/coreutils/>
General help using GNU software: <https://www.gnu.org/gethelp/>
Full documentation <https://www.gnu.org/software/coreutils/readlink>
or available locally via: info '(coreutils) readlink invocation'