V1/man/man2/chown.2
11/3/71 SYS CHOWN (II)
NAME chown -- change owner of file
SYNOPSIS sys chown; name; owner / chown = 16.
DESCRIPTION The file whose name is given by the null--terminated string
pointed to by name has its owner changed to owner. Only
the present owner of a file (or the super--user) may donate
the file to another user. Also, one may not change the
owner of a file with the set--user--ID bit on, otherwise one
could create Trojan Horses able to misuse other's files.
FILES
SEE ALSO /etc/uids has the mapping between user names and user
numbers.
DIAGNOSTICS The error bit (c--bit) is set on illegal owner changes.
BUGS
OWNER ken, dmr