Package: dash Version: 0.5.7-3ubuntu1 Severity: normal I realize this was found on an Ubuntu system but it also appears in normal Debian dash.
If I have this shell script: $ cat /tmp/t1.sh #--- cat <<EOF | sh || echo "hi die" echo subshell exit 1 EOF #--- then in both bash and dash I get the expected output: $ bash /tmp/t1.sh subshell hi die $ dash /tmp/t1.sh subshell hi die But if I change the script to use backticks in the echo instead, then bash still works: $ cat /tmp/t2.sh #--- cat <<EOF | sh || echo "`echo hi` die" echo subshell exit 1 EOF #--- $ bash /tmp/t2.sh subshell hi die but dash now does not work correctly: $ dash /tmp/t2.sh subshell For some reason, adding backticks causes the or-clause to be completely ignored. If you use $() instead of backticks, it works again in both bash and dash: $ cat /tmp/t3.sh #--- cat <<EOF | sh || echo "$(echo hi) die" echo subshell exit 1 EOF #--- $ bash /tmp/t3.sh subshell hi die $ dash /tmp/t3.sh subshell hi die Hope this is helpful in tracking down the problem! -- System Information: Debian Release: wheezy/sid APT prefers quantal-updates APT policy: (500, 'quantal-updates'), (500, 'quantal-security'), (500, 'quantal') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 3.5.0-21-generic (SMP w/8 CPU cores) Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Versions of packages dash depends on: ii debianutils 4.3.4 ii dpkg 1.16.7ubuntu6 ii libc6 2.15-0ubuntu20.1 dash recommends no packages. dash suggests no packages. -- debconf information: * dash/sh: true -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
