Or you could just use the emptyok option with save:
save filename, emptyok
which will save the file even without any observations.
Then append away.
On Mon, 16 Oct 2006, Jens Lauritsen wrote:
Date: Mon, 16 Oct 2006 18:25:06 +0200
From: Jens Lauritsen <[email protected]>
Reply-To: [email protected]
To: [email protected]
Subject: st: Re: Appending several files
A simple technique can be  useful to "trick" Stata to behave like a dataset 
exists:
* create an empty dataset with one observation and one variable:
set obs 1
gen articifialvar = 1
* now you can do anything where Stata expects an open data set to be present, 
e.g. from
* the current discussion:
qui fs *
foreach f in `r(files)' {
append using `f'
}
* following appending all the files the first imaginary observation and 
variable can be dropped:
drop artificialvar
drop in 1
regards
Jens Lauritsen
Odense, Denmark
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