Thanks for your answers! But I consider it ugly, to ask for the disk usage if you just want to recursively list all files.
And then, the man page for du(1) is missing from the distribution
http://github.com/9fans/plan9port
If found one in the book "Plan9 the Manuals", snd edition. But neither
on the CD from the second Edition or the current one.
Greetings,
Wolfgang
