testcase
$ printf 'a\0b\0b1' | grep --null-data --null b | hexdump -C 00000000 62 00 62 31 00 |b.b1.| 00000005
but
$ printf 'a\0b\0b1' | grep -o --null-data --null b | hexdump -C 00000000 62 0a 62 0a |b.b.| 00000004
This is fixed in Xenial, but IMO should be fixed in Trusty, too.
ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: grep 2.16-1 ProcVersionSignature: Ubuntu 4.4.0-37.56~14.04.1-generic 4.4.19 Uname: Linux 4.4.0-37-generic x86_64 ApportVersion: 2.14.1-0ubuntu3.21 Architecture: amd64 CurrentDesktop: XFCE Date: Wed Sep 7 22:48:42 2016 EcryptfsInUse: Yes InstallationDate: Installed on 2014-09-21 (717 days ago) InstallationMedia: Ubuntu-Studio 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.1) SourcePackage: grep UpgradeStatus: No upgrade log present (probably fresh install)
testcase
$ printf 'a\0b\0b1' | grep --null-data --null b | hexdump -C
00000000 62 00 62 31 00 |b.b1.|
00000005
but
$ printf 'a\0b\0b1' | grep -o --null-data --null b | hexdump -C
00000000 62 0a 62 0a |b.b.|
00000004
This is fixed in Xenial, but IMO should be fixed in Trusty, too.
ProblemType: Bug ature: Ubuntu 4.4.0-37. 56~14.04. 1-generic 4.4.19
DistroRelease: Ubuntu 14.04
Package: grep 2.16-1
ProcVersionSign
Uname: Linux 4.4.0-37-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.21
Architecture: amd64
CurrentDesktop: XFCE
Date: Wed Sep 7 22:48:42 2016
EcryptfsInUse: Yes
InstallationDate: Installed on 2014-09-21 (717 days ago)
InstallationMedia: Ubuntu-Studio 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.1)
SourcePackage: grep
UpgradeStatus: No upgrade log present (probably fresh install)