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33 .Nd change file owner and group
39 .Op Fl H | Fl L | Fl P
41 .Ar owner Ns Op : Ns Ar group
47 .Op Fl H | Fl L | Fl P
54 utility changes the user ID and/or the group ID of the specified files.
55 Symbolic links named by arguments are silently left unchanged unless
59 The options are as follows:
64 option is specified, symbolic links on the command line are followed
65 and hence unaffected by the command.
66 (Symbolic links encountered during traversal are not followed.)
70 option is specified, all symbolic links are followed.
74 option is specified, no symbolic links are followed.
77 Change the user ID and/or the group ID of the file hierarchies rooted
78 in the files, instead of just the files themselves.
79 Beware of unintentionally matching the
81 hard link to the parent directory when using wildcards like
84 Do not report any failure to change file owner or group, nor modify
85 the exit status to reflect such failures.
87 If the file is a symbolic link, change the user ID and/or the
88 group ID of the link itself.
92 to be verbose, showing files as the owner is modified.
95 flag is specified more than once,
97 will print the filename, followed by the old and new numeric user/group ID.
99 File system mount points are not traversed.
107 options are ignored unless the
110 In addition, these options override each other and the
111 command's actions are determined by the last one specified.
117 operands are both optional, however, one must be specified.
120 operand is specified, it must be preceded by a colon (``:'') character.
124 may be either a numeric user ID or a user name.
125 If a user name is also a numeric user ID, the operand is used as a
129 may be either a numeric group ID or a group name.
130 If a group name is also a numeric group ID, the operand is used as a
133 The ownership of a file may only be altered by a super-user for
134 obvious security reasons.
144 then the current filename as well as the old and new file owner and group
149 Previous versions of the
151 utility used the dot (``.'') character to distinguish the group name.
152 This has been changed to be a colon (``:'') character so that user and
153 group names may contain the dot character.
155 On previous versions of this system, symbolic links did not have
162 options are non-standard and their use in scripts is not recommended.
173 utility is expected to be