On Wed, Jun 20, 2018 at 08:13:06AM +0200, Torsten Bögershausen wrote: > Good eyes, thanks. > The "-f -c" combo works: > > - gzip -k fetch_body && > + gzip -f -c fetch_body >fetch_body.gz && > test_copy_bytes 10 <fetch_body.gz >fetch_body.gz.trunc && > - gzip -k push_body && > + gzip -f -c push_body >push_body.gz && Do we still need "-f"? With "-c" gzip is only writing to stdout, so we should not need to force anything. -Peff