GNU bug report logs - #8000
23.2; strange behavior of !$ in shell window

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: relson <at> osage
To: bug-gnu-emacs <at> gnu.org
Subject: 23.2; strange behavior of !$ in shell window
Date: Mon, 07 Feb 2011 20:50:30 -0500

In a shell (bash) window, if I type "echo x<enter>", the character "x" is echoed (as expected).

If I then type "ls -l !!<tab>" the complete previous command is added to the current line andwhat is executed is "ls -l echo x".  What _should_ have been execute is "ls -l x"


In GNU Emacs 23.2.1 (x86_64-pc-linux-gnu, GTK+ Version 2.20.1)
 of 2011-01-31 on osage
Windowing system distributor `The X.Org Foundation', version 11.0.10902000
configured using `configure  '--prefix=/usr' '--build=x86_64-pc-linux-gnu' '--host=x86_64-pc-linux-gnu' '--mandir=/usr/share/man' '--infodir=/usr/share/info' '--datadir=/usr/share' '--sysconfdir=/etc' '--localstatedir=/var/lib' '--libdir=/usr/lib64' '--program-suffix=-emacs-23' '--infodir=/usr/share/info/emacs-23' '--with-crt-dir=/usr/lib/gcc/x86_64-pc-linux-gnu/4.5.2/../../../../lib64' '--with-gameuser=games' '--with-sound' '--with-x' '--without-gconf' '--without-toolkit-scroll-bars' '--with-gif' '--with-jpeg' '--with-png' '--with-rsvg' '--with-tiff' '--with-xpm' '--without-xft' '--without-libotf' '--without-m17n-flt' '--with-x-toolkit=gtk' '--without-hesiod' '--without-kerberos' '--without-kerberos5' '--with-gpm' '--with-dbus' 'build_alias=x86_64-pc-linux-gnu' 'host_alias=x86_64-pc-linux-gnu' 'CFLAGS=-march=athlon64 -O2 -pipe' 'LDFLAGS=-Wl,-O1 -Wl,--as-needed' 'CPPFLAGS=''

Important settings:
  value of $LC_ALL: en_US.UTF-8
  value of $LC_COLLATE: nil
  value of $LC_CTYPE: nil
  value of $LC_MESSAGES: nil
  value of $LC_MONETARY: nil
  value of $LC_NUMERIC: nil
  value of $LC_TIME: nil
  value of $LANG: en_US.UTF-8
  value of $XMODIFIERS: nil
  locale-coding-system: utf-8-unix
  default enable-multibyte-characters: t

Major mode: Shell

Minor modes in effect:
  shell-dirtrack-mode: t
  tooltip-mode: t
  mouse-wheel-mode: t
  tool-bar-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  blink-cursor-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  line-number-mode: t
  transient-mark-mode: t

Recent input:
<escape> x s h e l l <return> e c h o SPC x <return> 
l s SPC - l SPC ! $ <tab> <return> <escape> x r e p 
o <tab> r <tab> <return>

Recent messages:
For information about GNU Emacs and the GNU system, type C-h C-a.
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Making completion list...

Load-path shadows:
None found.

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-- 
David Relson                   Osage Software Systems, Inc.
relson <at> osagesoftware.com       Ann Arbor, MI 48103
www.osagesoftware.com

Message #8 received at 8000 <at> debbugs.gnu.org (full text, mbox):

From: Glenn Morris <rgm <at> gnu.org>
To: 8000 <at> debbugs.gnu.org
Subject: Re: bug#8000: 23.2; strange behavior of !$ in shell window
Date: Mon, 07 Feb 2011 23:24:16 -0500

Please use a valid email address to report bugs. I cannot reply to your
address, so I hope you will read this.

relson <at> osage wrote:

> In a shell (bash) window, if I type "echo x<enter>", the character "x"
> is echoed (as expected).
>
> If I then type "ls -l !!<tab>" the complete previous command is added
> to the current line andwhat is executed is "ls -l echo x". What
> _should_ have been execute is "ls -l x"

Why is that what should have been executed? I thought `!!' was a tcsh
feature (making it kind of strange that it works in a bash shell at all
IMO...) that expands to the previous command, not the stdout of the
previous command. I'm not aware of any shell history expansion that
works in terms of the output of old commands. This would make no sense
in the majority of cases (eg cp etc).

Message #11 received at 8000 <at> debbugs.gnu.org (full text, mbox):

From: Glenn Morris <rgm <at> gnu.org>
To: 8000 <at> debbugs.gnu.org
Subject: Re: bug#8000: 23.2; strange behavior of !$ in shell window
Date: Mon, 7 Feb 2011 23:31:21 -0500

> > If I then type "ls -l !!<tab>" the complete previous command is added
> > to the current line andwhat is executed is "ls -l echo x". What
> > _should_ have been execute is "ls -l x"

Oh, I guess you meant to say '!$', like in your subject line, not '!!'.
Apparently this is tcsh's equivalent of bash's $_.
Maybe the history expansion of this isn't implemented (?).
Personally I'd just use $_.

Message #14 received at 8000 <at> debbugs.gnu.org (full text, mbox):

From: Glenn Morris <rgm <at> gnu.org>
To: 8000 <at> debbugs.gnu.org
Subject: Re: bug#8000: 23.2; strange behavior of !$ in shell window
Date: Mon, 07 Feb 2011 23:57:42 -0500

Glenn Morris wrote:

> Oh, I guess you meant to say '!$', like in your subject line, not '!!'.
> Apparently this is tcsh's equivalent of bash's $_.
> Maybe the history expansion of this isn't implemented (?).

What do I know... it works in 23.1 but not in 23.2. So it ought to be
easy to see where this went wrong.

Message #17 received at 8000 <at> debbugs.gnu.org (full text, mbox):

From: Glenn Morris <rgm <at> gnu.org>
To: 8000 <at> debbugs.gnu.org
Subject: Re: bug#8000: 23.2; strange behavior of !$ in shell window
Date: Tue, 08 Feb 2011 00:14:23 -0500

forcemerge 7883 8000
stop

And in 23.3 it will work again because this is a duplicate of
http://debbugs.gnu.org/cgi/bugreport.cgi?bug=7883, sigh.

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