making zsh beep like bash

[Charles Hallenbeck]

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I asked the zsh users list about making zsh beep when backspacing on an 
empty line, and received a suggestion that works great for me.

It takes a widget to do that, and a widget can be defined by the 
following several lines:

- -----

backward-delete-char-beep() {
  if (( CURSOR == 0 )) ; then
    zle beep ;
  fi ;
  zle backward-delete-char
}
zle -N backward-delete-char-beep
bindkey "^?" backward-delete-char-beep

- -----

I put these lines in /etc/zsh/zprofile, and they apply to all users. zsh 
now beeps just like bash when backspacing on an empty command line.

Chuck

- -- 
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