** Description changed: $ printf 'a b\0b' | grep --null-data "a b" | hexdump -C 00000000 61 0a 62 00 62 00 |a.b.b.| 00000006 expect 00000000 61 0a 62 + + EDIT: + + Apparently, in the above the pattern string is considered as two + patterns 'a' and 'b'. + + With -P you get + + $ printf 'a\nb\0b' | grep -zP 'a + b' | hexdump -C + grep: the -P option only supports a single pattern + + However, if the newline is coded as '\n' in the pattern, it works, but + only with -P + + $ printf 'a\nb\0b' | grep -zP 'a\nb' | hexdump -C + 00000000 61 0a 62 00 |a.b.| + 00000004 + $ printf 'a\nb\0b' | grep -z 'a\nb' | hexdump -C + $ printf 'a\nb\0b' | grep -zE 'a\nb' | hexdump -C + $ printf 'a\nb\0b' | grep -zF 'a\nb' | hexdump -C + + I expect it should work by other matcher selectors than -P, too. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: grep 2.25-1~16.04.1 ProcVersionSignature: Ubuntu 4.4.0-45.66-generic 4.4.21 Uname: Linux 4.4.0-45-generic x86_64 NonfreeKernelModules: nvidia_uvm nvidia ApportVersion: 2.20.1-0ubuntu2.1 Architecture: amd64 CurrentDesktop: XFCE Date: Fri Nov 11 12:58:27 2016 EcryptfsInUse: Yes InstallationDate: Installed on 2015-11-21 (355 days ago) InstallationMedia: Xubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021) SourcePackage: grep UpgradeStatus: Upgraded to xenial on 2016-06-24 (139 days ago)
** Summary changed: - Does not support patterns containing newline + Does not support patterns containing escaped newline character, except with -P -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to grep in Ubuntu. https://bugs.launchpad.net/bugs/1641092 Title: Does not support patterns containing escaped newline character, except with -P Status in grep package in Ubuntu: Confirmed Bug description: $ printf 'a b\0b' | grep --null-data "a b" | hexdump -C 00000000 61 0a 62 00 62 00 |a.b.b.| 00000006 expect 00000000 61 0a 62 EDIT: Apparently, in the above the pattern string is considered as two patterns 'a' and 'b'. With -P you get $ printf 'a\nb\0b' | grep -zP 'a b' | hexdump -C grep: the -P option only supports a single pattern However, if the newline is coded as '\n' in the pattern, it works, but only with -P $ printf 'a\nb\0b' | grep -zP 'a\nb' | hexdump -C 00000000 61 0a 62 00 |a.b.| 00000004 $ printf 'a\nb\0b' | grep -z 'a\nb' | hexdump -C $ printf 'a\nb\0b' | grep -zE 'a\nb' | hexdump -C $ printf 'a\nb\0b' | grep -zF 'a\nb' | hexdump -C I expect it should work by other matcher selectors than -P, too. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: grep 2.25-1~16.04.1 ProcVersionSignature: Ubuntu 4.4.0-45.66-generic 4.4.21 Uname: Linux 4.4.0-45-generic x86_64 NonfreeKernelModules: nvidia_uvm nvidia ApportVersion: 2.20.1-0ubuntu2.1 Architecture: amd64 CurrentDesktop: XFCE Date: Fri Nov 11 12:58:27 2016 EcryptfsInUse: Yes InstallationDate: Installed on 2015-11-21 (355 days ago) InstallationMedia: Xubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021) SourcePackage: grep UpgradeStatus: Upgraded to xenial on 2016-06-24 (139 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grep/+bug/1641092/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
