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  • unzip in cocoa
    // http://stackoverflow.com/questions/2296667/unzipping-a-file-in-cocoa
    - (void) unzip {
        NSFileManager* fm = [NSFileManager defaultManager];
        NSString* zipPath = @"myFile.zip";
        NSString* targetFolder = @"/tmp/unzipped"; //this it the parent folder
                                                   //where your zip's content 
                                                   //goes to (must exist)
        //create a new empty folder (unzipping will fail if any
        //of the payload files already exist at the target location)
        [fm createDirectoryAtPath:targetFolder withIntermediateDirectories:NO 
                                               attributes:nil error:NULL];
        //now create a unzip-task
        NSArray *arguments = [NSArray arrayWithObject:zipPath];
        NSTask *unzipTask = [[NSTask alloc] init];
        [unzipTask setLaunchPath:@"/usr/bin/unzip"];
        [unzipTask setCurrentDirectoryPath:targetFolder];
        [unzipTask setArguments:arguments];
        [unzipTask launch];
        [unzipTask waitUntilExit]; //remove this to start the task concurrently

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