Instructions for using the fs.fchown method in node.js_node.js

Method description:

Change file ownership (file descriptor).

Grammar:

Copy code The code is as follows:

fs.fchown(fd, uid, gid, [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

uid User ID

gid Group identity (referring to the identity of the user of the shared resource system)

callback Callback, passing the exception parameter err

Example:

Copy code The code is as follows:

fs.open('content.txt', 'a', function (err, fd) {
if (err) {
throw err;
}
fs.fchown(fd, uid, gid, function(err){
if (err) {
throw err;
}
console.log('fchmod complete');
fs.close(fd, function () {
console.log('Done');
});
})
});

Source code:

Copy code The code is as follows:

fs.fchown = function(fd, uid, gid, callback) {
binding.fchown(fd, uid, gid, makeCallback(callback));
};