Package: bash Version: 3.1dfsg-8 See transcript below. The results from using echo and /bin/echo should be the same. In particular, when set -e is not in effect, use of plain echo should not cause the shell to exit even if the attempt to write produces EPIPE/SIGPIPE.
(NB that this transcript shows two bugs of which this is only one.) -anarres:~/junk> ll p prw-rw---- 1 ian ian 0 Feb 2 16:14 p| -anarres:~/junk> true <p & [1] 2240 -anarres:~/junk> exec 3>p -anarres:~/junk> [1]+ Done true <p -anarres:~/junk> sh -c 'exec >&3; exit 42'; echo $? 42 -anarres:~/junk> sh -c 'exec >&3; echo hi; exit 42'; echo $? 141 -anarres:~/junk> sh -c 'exec >&3; /bin/echo hi; exit 42'; echo $? 42 -anarres:~/junk> perl -e 'open F,">&3" or die $!; print F "foo";'; echo $? 141 -anarres:~/junk> strace -ot perl -e 'open F,">&3" or die $!; print F "foo";' -anarres:~/junk> grep PIPE t _llseek(0, 0, 0xbfe12370, SEEK_CUR) = -1 ESPIPE (Illegal seek) _llseek(1, 0, 0xbfe12370, SEEK_CUR) = -1 ESPIPE (Illegal seek) _llseek(2, 0, 0xbfe12370, SEEK_CUR) = -1 ESPIPE (Illegal seek) _llseek(4, 0, 0xbfe12400, SEEK_CUR) = -1 ESPIPE (Illegal seek) write(4, "foo", 3) = -1 EPIPE (Broken pipe) --- SIGPIPE (Broken pipe) @ 0 (0) --- +++ killed by SIGPIPE +++ -anarres:~/junk> echo $BASH_VERSION 3.1.17(1)-release -anarres:~/junk> dpkg -s bash Package: bash Essential: yes Status: install ok installed Priority: required Section: shells Installed-Size: 1848 Maintainer: Matthias Klose <[EMAIL PROTECTED]> Architecture: i386 Version: 3.1dfsg-8 Replaces: bash-doc (<= 2.05-1), bash-completion Depends: base-files (>= 2.1.12), debianutils (>= 2.15) Pre-Depends: libc6 (>= 2.3.6-6), libncurses5 (>= 5.4-5) Suggests: bash-doc Conflicts: bash-completion Conffiles: /etc/skel/.bashrc de2b922ef0623ba36dda5fb6f7f7d9ea /etc/skel/.bash_profile d1a8c44e7dd1bed2f3e75d1343b6e4e1 /etc/skel/.bash_logout 22bfb8c1dd94b5f3813a2b25da67463f /etc/bash.bashrc 596642d7415ff5d9f013786028a39583 /etc/bash_completion 9da8d1c95748865d516764fb9af82af9 Description: The GNU Bourne Again SHell Bash is an sh-compatible command language interpreter that executes commands read from the standard input or from a file. Bash also incorporates useful features from the Korn and C shells (ksh and csh). . Bash is ultimately intended to be a conformant implementation of the IEEE POSIX Shell and Tools specification (IEEE Working Group 1003.2). . Included in the bash package is the Programmable Completion Code, by Ian Macdonald. -anarres:~/junk> -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
