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sys-chown(2) - Unix First Edition Manual Page
11/3/71SYS_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 stringpointed to by name has its owner changed to owner. Only

the present owner of a file (or the super--user) may donatethe file to another user. Also, one may not change the owner of a file with the set--user--ID bit on, otherwise onecould create Trojan Horses able to misuse other's files.

SEE_ALSO /etc/uids has the mapping between user names and usernumbers.

DIAGNOSTICS The error bit (c--bit) is set on illegal owner changes.
OWNER ken, dmr