Method description:
Change file permissions (file descriptors).
Grammar:
fs.fchmod(fd, mode, [callback(err)])
Since this method belongs to the fs module, the fs module needs to be introduced before use (var fs= require(“fs”) )
Receive parameters:
fd File descriptor
mode file permissions
callback callback, passing the exception parameter err
Example:
fs.open('content.txt', 'a', function (err, fd) {
if (err) {
Throw err;
}
fs.fchmod(fd, 0777, function(err){
if (err) {
throw err;
}
console.log('fchmod complete');
fs.close(fd, function () {
console.log('Done');
});
})
});
Source code:
fs.fchmod = function(fd, mode, callback) {
binding.fchmod(fd, modeNum(mode), makeCallback(callback));
};
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