chgrpなどでsymlink元の情報を変えたい

いつもあいまいに作業しているのでメモ．

$ LANG=C chown --help
Usage: chown [OPTION]... OWNER[:[GROUP]] FILE...
  or:  chown [OPTION]... :GROUP FILE...
  or:  chown [OPTION]... --reference=RFILE FILE...
Change the owner and/or group of each FILE to OWNER and/or GROUP.
With --reference, change the owner and group of each FILE to those of RFILE.

  -c, --changes          like verbose but report only when a change is made
      --dereference      affect the referent of each symbolic link, rather
                         than the symbolic link itself (this is the default)
  -h, --no-dereference   affect each symbolic link instead of any referenced
                         file (useful only on systems that can change the
                         ownership of a symlink)

ってことで「--no-dereference」使うこと．