CHOWN(8) BSD System Manager's Manual CHOWN(8)
NAME
chown - change file owner and group
SYNOPSIS
chown [-Rf] owner [:group] file ...
chown [-Rf] :group file ...
DESCRIPTION
Chown sets the user ID and/or the group ID of the specified files.
The options are as follows:
-R Change the user ID and/or the group ID for the file hierarchies
rooted in the files instead of just the files themselves.
-f Don't report any failure to change file owner or group, nor modi-
fy the exit status to reflect such failures.
The owner and group operands are both optional, however, one must be
specified. If the group operand is specified, it must be preceded by a
colon (``:'') character.
The owner may be either a numeric user ID or a user name. If a user name
is also a numeric user ID, the operand is used as a user name. The group
may be either a numeric group ID or a group name. If a group name is al-
so a numeric group ID, the operand is used as a group name.
The ownership of a file may only be altered by a super-user for obvious
security reasons.
The owner and group of symbolic links are themselves changed instead of
the file to which the link points.
The chown utility exits 0 on success, and >0 if an error occurs.
COMPATIBILITY
Previous versions of the chown utility used the dot (``.'') character to
distinguish the group name. This has been changed to be a colon (``:'')
character so that user and group names may contain the dot character.
SEE ALSO
chgrp(1), find(1), chown(2)
STANDARDS
The chown command is expected to be POSIX 1003.2 compliant.
4th Berkeley Distribution March 27, 1993 1