chown(1) | chown(1) |
NAME
chown, chgrp - change ®le owner or group
SYNOPSIS
chown
chgrp
DESCRIPTION
The chown command changes the owner ID of each speci®ed ®le to owner and optionally the group ID of each speci®ed ®le to group.
The chgrp command changes the group ID of each speci®ed ®le to group.
owner can be either a decimal user ID or a login name found in the /etc/passwd ®le.
group can be either a decimal group ID or a group name found in the /etc/group ®le.
In order to change the owner or group, you must own the ®le and have the CHOWN privilege (see setprivgrp(1M)). If either command is invoked on a regular ®le by other than the superuser, the
Access Control Lists − HFS File Systems Only
Users can permit or deny speci®c individuals and groups to access a ®le by setting optional ACL entries in the ®le's access control list (see acl(5)). When using chown in conjunction with HFS ACLs, if the new owner and/or group of a ®le does not have an optional ACL entry corresponding to user.% and/or %.group in the ®le's access control list, the ®le's access permission bits remain unchanged. However, if the new owner and/or group is already designated by an optional ACL entry of user.% and/or %.group in the ®le's ACL, chown sets the corresponding ®le access permission bits (and the corresponding base ACL entries) to the permissions contained in that entry.
Access Control Lists − JFS File Systems Only
Users can permit or deny speci®c individuals and groups to access a ®le by setting optional ACL entries in the ®le's access control list (see aclv(5)). When using chown in conjunction with JFS ACLs, if the new owner and/or group of a ®le have optional ACL entries corresponding to user:uid:perm and/or group:gid:perm in the ®le's access control list, those entries remain in the ACL but no longer have any effect, being superseded by the ®le's user::perm and/or group::perm entries.
Options
chown and chgrp recognize the following options:
By default, the owner or group of the target ®le that a symbolic link points to is changed. With
EXTERNAL INFLUENCES
Environment Variables
LC_MESSAGES determines the language in which messages are displayed.
If LC_MESSAGES is not speci®ed in the environment or is set to the empty string, the value of LANG is used as a default for each unspeci®ed or empty variable. If LANG is not speci®ed or is set to the empty string, a default of "C" (see lang(5)) is used instead of LANG.
If any internationalization variable contains an invalid setting, chown behaves as if all internationalization variables are set to "C". See environ(5).
International Code Set Support
Single- and
c
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