On Tue, 18 Apr 2006 19:24:33 +0200, Johnny Billquist <bqt@update.uu.se>
wrote:

> Hmm, if that is correct, then it's actually meaningless to use several 
> "-" arguments to cat in zsh as well.
> zsh itself concatenates all the fiven stdin files, and give the whole 
> bunch as one stdin stream, using the first "-" argument of cat. All the 
> others will just give eof directly.
> 
> This should be easily verifyable.
> 
> Just try something like
> 
> cat - file - < file1 < file2
> 
> and check if file is located between file1 and file2.

I tried it; as I said, I ran into some bugs that produced garbage output.

		--Steven M. Bellovin, http://www.cs.columbia.edu/~smb