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

Method description:

Change file ownership (does not resolve symbolic links).

Grammar:

Copy code The code is as follows:

fs.lchown(path, 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:

path Directory path

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.lchown('content.txt', uid, gid, function(err){
if(err){
console.log(err);
}else{
console.log("change done");
}
})

Source code:

Copy code The code is as follows:

fs.lchown = function(path, uid, gid, callback) {
​ callback = maybeCallback(callback);
fs.open(path, constants.O_WRONLY | constants.O_SYMLINK, function(err, fd) {
If (err) {
        callback(err);
         return;
}
         fs.fchown(fd, uid, gid, callback);
});
};