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From: Bart Schaefer <schaefer@brasslantern.com>
Message-id: <100129163645.ZM9106@torch.brasslantern.com>
Date: Fri, 29 Jan 2010 16:36:45 -0800
In-reply-to: <25809.1264802076@pws-pc>
Comments: In reply to Peter Stephenson <p.w.stephenson@ntlworld.com>
 "PATCH: installing executable functions" (Jan 29,  9:54pm)
References: <25809.1264802076@pws-pc>
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To: zsh-workers@zsh.org (Zsh hackers list)
Subject: Re: PATCH: installing executable functions
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On Jan 29,  9:54pm, Peter Stephenson wrote:
}
} ("sed -ne '1p'" is in case there's some ghastliness where "head -1" is
} broken as has occasionally been observed with "tail -1".)
} 
} The biggest disadvantage here is this could make function installation
} on some systems, notably Cygwin, even more interminable.

Perhaps this would be faster?

  if test -n "`sed -ne 2q -e '/^#!/p' $sdir_top/$file`"; then

} +    if sed -ne '1p' $sdir_top/$file | grep '^#!' >/dev/null; then