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chmod
=====

Syntax
------

     #include <sys/stat.h>
     
     int chmod(const char *path, mode_t mode);

Description
-----------

This function changes the mode (writable or write-only) of the specified
file.  The value of MODE can be a combination of one or more of the
following:

`S_IRUSR'
     Make the file readable

`S_IWUSR'
     Make the file writable

Other `S_I*' values could be included, but they will be ignored.

Return Value
------------

Zero if the file exists and the mode was changed, else nonzero.

Example
-------

     chmod("/tmp/dj.dat", S_IWUSR|S_IRUSR);