On 29/03/17 09:04, Chris Davies wrote: > Package: coreutils > Version: 8.25-2+b1 > Severity: minor > > Dear Maintainer, > > The man page for dd does not define an interaction between bs and its more > specific ibs and obs options. POSIX does mandate that bs, if specified, > shall override ibs and obs. Empirically I have determined that coreutils > dd implements POSIX behaviour, so I should like to suggest the man page > is updated to state that bs overrides ibs and/or obs. > > > POSIX man page at http://www.unix.com/man-page/posix/1posix/dd/ defines > the three options bs, ibs, and obs as follows: > > ibs=expr > Specify the input block size, in bytes, by expr (default is 512). > > obs=expr > Specify the output block size, in bytes, by expr (default is 512). > > bs=expr > Set both input and output block sizes to expr bytes, superseding > ibs= and obs=. If no conversion other than sync, noerror, and > notrunc is specified, each input block shall be copied to the > output as a single block without aggregating short blocks. > > > Extracts from the current coreutils man page read as follows: > > bs=BYTES > read and write up to BYTES bytes at a time > > ibs=BYTES > read up to BYTES bytes at a time (default: 512) > > obs=BYTES > write BYTES bytes at a time (default: 512) > > > I would like to suggest that the explanation is amended as follows: > > bs=BYTES > read and write up to BYTES bytes at a time (default: > 512); overrides ibs and obs
Done in your name upstream at: http://git.sv.gnu.org/gitweb/?p=coreutils.git;a=commitdiff;h=v8.27-15-gc1c558e
