Public bug reported: parallel --null does the right thing normally, but when used with --cat or --pipe, seems to have no effect. Some examples below.
Without --cat or --pipe: $ echo -e 'a\0b\0c' | parallel --will-cite --null echo | xxd 00000000: 610a 620a 630a 0a a.b.c.. We see the null bytes transformed to newlines, indicating three invocations of 'echo' with 'a", "b", and "c\n", respectively. With --cat or --pipe: $ echo -e 'a\0b\0c' | parallel --will-cite --null --cat xxd 00000000: 6100 6200 630a a.b.c. $ echo -e 'a\0b\0c' | parallel --will-cite --null --pipe xxd - 00000000: 6100 6200 630a a.b.c. We see the output is the same as the input, indicating the input was passed unchanged to xxd. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: parallel 20161222-1 ProcVersionSignature: Ubuntu 4.15.0-23.25-generic 4.15.18 Uname: Linux 4.15.0-23-generic x86_64 ApportVersion: 2.20.9-0ubuntu7.2 Architecture: amd64 CurrentDesktop: KDE Date: Mon Jul 2 16:41:41 2018 InstallationDate: Installed on 2018-03-23 (101 days ago) InstallationMedia: Kubuntu 18.04 LTS "Bionic Beaver" - Alpha amd64 (20180306.1) PackageArchitecture: all SourcePackage: parallel UpgradeStatus: No upgrade log present (probably fresh install) ** Affects: parallel (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug bionic -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1779763 Title: --null does nothing when used with --cat or --pipe To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/parallel/+bug/1779763/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs