07-28-2006
To
chown subdir/file you have to have write permissions on this file, so I think you cannot chown
subdir/file.
To remove
subdir/file you need write permissions on
subdir.
To avoid this in future remove SGID attribute on a
'.' (current directory). If the SGID (Set Group Identification) attribute is set on a directory, files created in that directory inherit its group ownership. If the SGID is not set the file's group ownership corresponds to the user's default group.
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chown(8) System Manager's Manual chown(8)
Name
chown - change owner and, optionally, group
Syntax
/etc/chown [ -fR ] owner[.group] file...
Description
The command changes the owner and, optionally, group for one or more files and directories. The value for file can be a full or partial
path. The value for owner can be either a decimal UID or a login name found in the password file. The value for group can be either a
decimal GID or a group name found in the group file.
Only the superuser can change the ownership of a file. The superuser can also change the group of a file. The owner of a file can only
change the group, but the owner must be a member of any group specified.
Options
-f Inhibits display of errors that are returned when cannot change the owner or group of the specified files.
-R Causes to recursively descend any directories subordinate to file and to set the owner, group, or both for each file encountered.
When symbolic links are encountered, changes the owner and group for the link file itself but does not traverse the path associated
with the link. The option is useful only when file is a directory that is not empty.
Examples
Change the owner of to ecbell:
/etc/chown ecbell myfile
Change the owner of to craig and group of to admin:
/etc/chown craig.admin myfile
Change the owner to richart and group to eng for the directories and and for all files and directories on any levels subordinate to and
/etc/chown -R richart.eng projecta projectb
Files
See Also
chgrp(1), chown(2), group(5), group(5yp), passwd(5), passwd(5yp)
chown(8)