       1mchown 22m[1m-fileid22m] 4mowner24m | {4mowner24m 4mgroup24m} 4mfilelist0m
              Set  owner of each file in the list 4mfilelist24m to 4mowner24m, which can
              be a user name or numeric user id.  If the first parameter is  a
              list, then the owner is set to the first element of the list and
              the group is set to the second element.  4mGroup24m can  be  a  group
              name  or  numeric group id.  If 4mgroup24m is {}, then the file group
              will be set to the login group of the specified user.

              If the option 1m-fileid 22mis specified, 4mfilelist24m is a list  of  open
              file  identifiers rather than a list of file names.  This option
              is not available on all Unix systems.  Use the 1minfox have_fchown0m
              command to determine if this functionality is available.

              The 1mchown 22mcommand is not available on 1mWindows22m.
