NSFileManager
lastmod 2014-03-25created 2014-03-246 edits
Example
To delete a file:
NSFileManager * fileManager = [NSFileManager defaultManager];
[fileManager removeItemAtPath:recordPcmPath error:nil];
To check whether a file exists:
NSFileManager * fileManager =[NSFileManager defaultManager];
BOOL exist = [fileManager fileExistsAtPath:myPath];