a=X; source <( echo a=Y ); echo $a
in [Shell]
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From: Name withheld by request on 30 Jan 2010 16:01 Not what I would expect: /tmp $ echo a=Y > foo /tmp $ a=X;source foo; echo $a Y /tmp $ a=X; source <( echo a=Y ) ; echo $a X /tmp $ echo $BASH_VERSION 3.2.49(23)-release What is it I'm missing, why isn't this a bug? -- thanks /tmp $ command od -Ad -c < <( echo a=Y ) 0000000 a = Y \n 0000004
From: pk on 30 Jan 2010 16:35 Name withheld by request wrote: > Not what I would expect: > > /tmp $ echo a=Y > foo > /tmp $ a=X;source foo; echo $a > Y > /tmp $ a=X; source <( echo a=Y ) ; echo $a > X > /tmp $ echo $BASH_VERSION > 3.2.49(23)-release > > What is it I'm missing, why isn't this a bug? It works as expected for me with bash 4.0.35: $ bash --version GNU bash, version 4.0.35(2)-release (x86_64-pc-linux-gnu) Copyright (C) 2009 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> This is free software; you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. $ a=X; source <(echo a=Y); echo "$a" Y
From: Chris F.A. Johnson on 30 Jan 2010 16:50 On 2010-01-30, pk wrote: > Name withheld by request wrote: > >> Not what I would expect: >> >> /tmp $ echo a=Y > foo >> /tmp $ a=X;source foo; echo $a >> Y >> /tmp $ a=X; source <( echo a=Y ) ; echo $a >> X >> /tmp $ echo $BASH_VERSION >> 3.2.49(23)-release >> >> What is it I'm missing, why isn't this a bug? > > It works as expected for me with bash 4.0.35: Yes, it works in bash 4+, but not in 3.X; the OP should upgrade. -- Chris F.A. Johnson, author <http://shell.cfajohnson.com/> =================================================================== Shell Scripting Recipes: A Problem-Solution Approach (2005, Apress) Pro Bash Programming: Scripting the GNU/Linux Shell (2009, Apress) ===== My code in this post, if any, assumes the POSIX locale ===== ===== and is released under the GNU General Public Licence =====
From: Name withheld by request on 30 Jan 2010 17:22 Chris F.A. Johnson <cfajohnson(a)gmail.com> wrote: --snip > Yes, it works in bash 4+, but not in 3.X; the OP should upgrade. Thanks to you both. I'll look forward to the upgrade. Did not know bash 4+ existed.. :-> http://tiswww.case.edu/php/chet/bash/NEWS >-- > Chris F.A. Johnson, author <http://shell.cfajohnson.com/> > =================================================================== > Shell Scripting Recipes: A Problem-Solution Approach (2005, Apress) > Pro Bash Programming: Scripting the GNU/Linux Shell (2009, Apress) > ===== My code in this post, if any, assumes the POSIX locale ===== > ===== and is released under the GNU General Public Licence =====
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