CVS commit: src/bin/dd

["Jean-Yves Migeon" <jym%netbsd.org@localhost>]

Module Name:    src
Committed By:   jym
Date:           Sun Nov  6 21:22:23 UTC 2011

Modified Files:
        src/bin/dd: Makefile args.c dd.1 dd.c extern.h misc.c

Log Message:
Add a new command to dd(1): msgfmt. The command modifies the
output of the information summary returned by dd(1). This can be used
to specify messages in a more usable (or parseable) format like
human-readable values.

My intent is to re-use this for building image files and quick I/O
benchmarking.

Reviewed by tsutsui@ on tech-userlevel. See also
http://mail-index.netbsd.org/tech-userlevel/2010/12/03/msg004179.html

Some examples:

 $ dd if=/dev/zero of=/dev/null bs=1m count=1 msgfmt=human
1+0 records in
1+0 records out
1048576 bytes (1,0 MB) transferred in 0.001 secs (1048576000 bytes/sec - 1,0 
GB/sec)

 $ dd if=/dev/zero of=/dev/null count=1 msgfmt='
 > <speed>%E</speed>
 > <time>%s</time>
 > <bytes>%b</bytes>
 > '
<speed>500 KB/sec</speed>
<time>0.001</time>
<bytes>512</bytes>


To generate a diff of this commit:
cvs rdiff -u -r1.15 -r1.16 src/bin/dd/Makefile
cvs rdiff -u -r1.35 -r1.36 src/bin/dd/args.c
cvs rdiff -u -r1.23 -r1.24 src/bin/dd/dd.1
cvs rdiff -u -r1.47 -r1.48 src/bin/dd/dd.c
cvs rdiff -u -r1.20 -r1.21 src/bin/dd/extern.h
cvs rdiff -u -r1.21 -r1.22 src/bin/dd/misc.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.