Does anyone know of a method of getting the free disk space on a volume?

Cheers.

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easiest way would be to use popen() or NSTask to run the df command. If that’s not acceptable, then you can snarf the df command from Darwin and see how they do it.

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df works beautifully, thanks. :)

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Interestingly… I found out Apple’s own installers use df - when I replaced df with a custom version and my machine wouldn’t update. ;)

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Another method that seems to work just fine…

• (void)traceFileSystemAttributesForPath:(NSString*)path { unsigned long long sizeValue; NSString *fullPath = [path stringByStandardizingPath]; if (fullPath) { NSFileManager *fileManager = [NSFileManager defaultManager]; if (fileManager) { NSDictionary *fileSystemAttributes = [fileManager fileSystemAttributesAtPath:fullPath]; if (fileSystemAttributes && [fileSystemAttributes count]) { NSNumber *keyValue = [fileSystemAttributes objectForKey:NSFileSystemSize]; if (keyValue) { sizeValue = [keyValue unsignedLongLongValue]; NSLog(@”The total volume size containing the path "%@" is %qu”, fullPath, sizeValue); }

            keyValue = [fileSystemAttributes objectForKey:NSFileSystemFreeSize];
            if (keyValue)
            {
                sizeValue = [keyValue unsignedLongLongValue];
                NSLog(@"The current free space on the volume containing \"%@\" is %qu", fullPath, sizeValue);
            }
        }
    }   } }