CHMOD(1)CHMOD(1)NAMEchmod - change file mode (permissions)
SYNOPSISchmod mode file ...
DESCRIPTION
Chmod changes the mode (permissions) of each file according to mode,
which may be an octal number or a symbolic change to the existing mode.
A mode can be numerically formed as the OR of the following octal val‐
ues (a leading 8r is ignored):
0400 read by owner
0200 write by owner
0100 execute (search in directory) by owner
0070 read, write, execute (search) by group
0007 read, write, execute (search) by others
A symbolic mode has the form:
[who] op permission
The who part is a combination of the letters u (for user's permis‐
sions), g (group) and o (other). The letter a stands for ugo. If who
is omitted, the default is a.
The op field can be: + to add permission to the file's mode, - to take
away permission, = to assign permission absolutely (all other bits
being reset).
The permission field is any combination of the letters r (read), w
(write), x (execute), a (append only), l (exclusive access), and t
(temporary, not archived).
SOURCE
/appl/cmd/chmod.b
SEE ALSOchgrp(1), ls(1), sys-stat(2)BUGS
The interpretation of the modes is limited on some host operating sys‐
tems, particularly variants of Windows.
CHMOD(1)
