How to overwrite a file with NSFileManager when copying?

Question

I\'m using this method to copy a file:

[fileManager copyItemAtPath:sourcePath toPath:targetPath error:&error];

I want to overwrite a fi

Answer 1

You'd want to do an atomic save in this case, which would be best achieved by using NSData or NSString's writeToFile:atomically: methods (and their variants):

NSData *myData = ...; //fetched from somewhere
[myData writeToFile:targetPath atomically:YES];

Or for an NSString:

NSString *myString = ...;
NSError *err = nil;
[myString writeToFile:targetPath atomically:YES encoding:NSUTF8StringEncoding error:&err];
if(err != nil) {
  //we have an error.
}