Korn Shell Programming by Example

chmod

Official Description

Changes file-access permissions.

Syntax

chmod [option] mode
					file(s)
				

Options

-R causes chmod to recursively descend its directory arguments, setting the mode for each file.

-f suppresses most error messages; forces the change.

-v stands for verbose and outputs a diagnostic for every file processed.

Oddities

Has a numeric form (755) and a mnemonic form (ug+x).

Example

$ ls -l buzz
-rwxrwxr--   1 obrien   obrien         47 Nov 26 12:19 buzz
$
$ chmod o+x buzz             # Add execute access for others
$
$ ls -l buzz
-rwxrwxr-x   1 obrien   obrien         47 Nov 26 12:19 buzz
$
$ chmod 007 buzz             # No access for user and group,
                             # all access to others
$
$ ls -l buzz
-------rwx 1 obrien obrien 47 Nov 26 12:19 buzz $ $ buzz # Others can execute, user (owner) ...