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Date: Tue, 16 Nov 2004 16:03:31 -0800 (PST)
From: Bart Schaefer <schaefer@brasslantern.com>
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To: zsh-users@sunsite.dk
Subject: Re: !!:$
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On Tue, 16 Nov 2004, keef wrote:

> something to the effect of:
> alias ch="chmod 755 !!:$"

This is what the "fc" command is for, by the way.

  fcch() {
    emulate -L zsh
    # We're passed a file name, so:
    # - read it
    # - split it into shell words
    # - and grab the last one
    local w=${${(z)"$(<$1)"}[-1]}
    # Write back the edited command
    print "chmod 755 ${(qq)w}" >| $1
  }
  alias ch='fc -e fcch'


With that, you can even do e.g.

  ch -3

to chmod the last argument from the third command back instead of the 
immediately preceding command.