Other user should not read the file but can execute Post: 302952932

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LEARN ABOUT V7

chmod

CHMOD(2)							System Calls Manual							  CHMOD(2)

NAME

       chmod - change mode of file

SYNOPSIS

       chmod(name, mode)
       char *name;

DESCRIPTION

       The file whose name is given as the null-terminated string pointed to by name has its mode changed to mode.  Modes are constructed by ORing
       together some combination of the following:

	       04000 set user ID on execution
	       02000 set group ID on execution
	       01000 save text image after execution
	       00400 read by owner
	       00200 write by owner
	       00100 execute (search on directory) by owner
	       00070 read, write, execute (search) by group
	       00007 read, write, execute (search) by others

       If an executable file is set up for sharing (-n or -i option of ld(1)) then mode 1000 prevents the system from  abandoning  the	swap-space
       image  of  the  program-text  portion of the file when its last user terminates.  Thus when the next user of the file executes it, the text
       need not be read from the file system but can simply be swapped in, saving time.  Ability to set this bit is restricted to  the	super-user
       since swap space is consumed by the images; it is only worth while for heavily used commands.

       Only the owner of a file (or the super-user) may change the mode.  Only the super-user can set the 1000 mode.

SEE ALSO

       chmod(1)

DIAGNOSTIC

       Zero is returned if the mode is changed; -1 is returned if name cannot be found or if current user is neither the owner of the file nor the
       super-user.

ASSEMBLER

       (chmod = 15.)
       sys chmod; name; mode

																	  CHMOD(2)

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