Page 192 - DCAP602_NETWORK_OPERATING_SYSTEMS_I

Network Operating Systems-I

notes operate on files and directories recursively
-v

--verbose
output a diagnostic for every file processed
The following options modify how a hierarchy is traversed when the –R option is also specified.
If more than one is specified, only the final one takes effect.

-H
if a command line argument is a symbolic link to a directory, traverse it
-L
traverse every symbolic link to a directory encountered
-P

do not traverse any symbolic links (default)
--help
display this help and exit
--version

output version information and exit

Task Describe the syntax of changing the group.

10.3.5 change mode

The chmod (‘change mode’) command is used to change the modes (access permissions)
associated with a file. The change is specified in the form:
bash$ chmod modes file

A mode is a three-item sequence which represents who, operation and permission.
who is one of:
1. u user — the owner of the file
2. g group — the group to which the owner belongs

3. others— everyone else
4. a all — user, group and others
Operation is one of:
1. + add the specified permission
2. - subtract the specified permission

3. = assign the specified permission, ignoring whatever may have been set before.
Permission is specified by one or more of:
1. r read

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