[unix-history] / man / man2 / chmod.2

.th CHMOD II 8/5/73
.sh NAME
chmod \*- change mode of file
.sh SYNOPSIS
(chmod = 15.)
.br
.ft B
sys chmod; name; mode
.s3
chmod(name, mode)
.br
char *name;
.ft R
.sh DESCRIPTION
The file whose name
is given as the null-terminated string pointed to by
.it name
has its mode changed to
.it mode.
Modes are constructed by ORing together some
combination of the following:
.s3
.in +3
 4000 set user ID on execution
 2000 set group ID on execution
 0400 read by owner
 0200 write by owner
 0100 execute by owner
 0070 read, write, execute by group
 0007 read, write, execute by others
.in -3
.s3
Only the owner of a file (or the super-user) may change the mode.
.sh "SEE ALSO"
chmod(I)
.sh DIAGNOSTIC
Error bit
(c-bit) set if
.it name
cannot be found or if current user
is neither the owner of the file nor the super-user.
From C, a \*-1 returned value indicates an
error, 0 indicates success.
Commit	Line	Data
88d0a458 KT	1	.th CHMOD II 8/5/73
	2	.sh NAME
	3	chmod \*- change mode of file
	4	.sh SYNOPSIS
	5	(chmod = 15.)
	6	.br
	7	.ft B
	8	sys chmod; name; mode
	9	.s3
	10	chmod(name, mode)
	11	.br
	12	char *name;
	13	.ft R
	14	.sh DESCRIPTION
	15	The file whose name
	16	is given as the null-terminated string pointed to by
	17	.it name
	18	has its mode changed to
	19	.it mode.
	20	Modes are constructed by ORing together some
	21	combination of the following:
	22	.s3
	23	.in +3
	24	4000 set user ID on execution
	25	2000 set group ID on execution
	26	0400 read by owner
	27	0200 write by owner
	28	0100 execute by owner
	29	0070 read, write, execute by group
	30	0007 read, write, execute by others
	31	.in -3
	32	.s3
	33	Only the owner of a file (or the super-user) may change the mode.
	34	.sh "SEE ALSO"
	35	chmod(I)
	36	.sh DIAGNOSTIC
	37	Error bit
	38	(c-bit) set if
	39	.it name
	40	cannot be found or if current user
	41	is neither the owner of the file nor the super-user.
	42	From C, a \*-1 returned value indicates an
	43	error, 0 indicates success.