Page 191 - DCAP602_NETWORK_OPERATING_SYSTEMS_I

Unit 10: File System

-R notes
--recursive

Recursively change ownership of directories and their contents.
-v
--verbose
Verbosely describe the action (or non-action) taken for every FILE. If a symbolic link is
encountered during a recursive traversal on a system without the ‘lchown’ system call, and ‘--no-
dereference’ is in effect, then issue a diagnostic saying neither the symbolic link nor its referent
is being changed.
If a colon or dot but no group name follows the user name, that user is made the owner of the files
and the group of the files is changed to that user’s login group.

Did u know? Why the ordinary user cannot change the ownership of files?

10.3.4 change group

chgrp changes the group ownership of each given File to Group (which can be either a group
name or a numeric group id) or to the group of an existing reference file.
chgrp [Options]... {Group | --reference=File} File...

-c
--changes
like verbose but report only when a change is made
--dereference

affect the referent of each symbolic link, rather than the symbolic link itself (this is the default)
-h
--no-dereference
affect each symbolic link instead of any referenced file (useful only on systems that can change
the ownership of a symlink)
--no-preserve-root do not treat ‘/’ specially (the default)
--preserve-root
fail to operate recursively on ‘/’
-f

--silent,
--quiet
suppress most error messages
--reference=RFILE

use RFILE’s group rather than the specifying GROUP value
-R
--recursive

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