Debian Bug report logs - #758969
bash: "! true &" sets $? to 1

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Message #5 received at submit@bugs.debian.org (full text, mbox, reply):

From: Vincent Lefevre <vincent@vinc17.net>

To: Debian Bug Tracking System <submit@bugs.debian.org>

Subject: bash: "! true &" sets $? to 1

Date: Sat, 23 Aug 2014 12:36:45 +0200

Package: bash
Version: 4.3-9
Severity: normal

With bash:

vinc17@xvii:~$ ! true &
[1] 15171
vinc17@xvii:~$ echo $?
1
[1]+  Done                    true

while POSIX says:

  The exit status of an asynchronous list shall be zero.

in http://pubs.opengroup.org/onlinepubs/9699919799/utilities/V3_chap02.html#tag_18_09_03_02

Other shells (dash, ksh93, mksh, zsh) behave correctly.

-- System Information:
Debian Release: jessie/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (500, 'testing'), (500, 'stable'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 3.11-2-amd64 (SMP w/2 CPU cores)
Locale: LANG=POSIX, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages bash depends on:
ii  base-files   7.5
ii  dash         0.5.7-4
ii  debianutils  4.4
ii  libc6        2.19-9
ii  libncurses5  5.9+20140712-2
ii  libtinfo5    5.9+20140712-2

Versions of packages bash recommends:
ii  bash-completion  1:2.1-4

Versions of packages bash suggests:
pn  bash-doc  <none>

-- debconf-show failed

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