Date: Wed, 6 Apr 2005 01:06:06 +0200 From: Mario Hoerich <lists@MHoerich.de> To: Martin McCormick <martin@dc.cis.okstate.edu> Cc: freebsd-questions@freebsd.org Subject: Re: Bourn Shell Scripts that Produce Multiple Files Message-ID: <20050405230605.GA93190@Pandora.MHoerich.de> In-Reply-To: <200504052028.j35KSU9S042813@dc.cis.okstate.edu> References: <200504052028.j35KSU9S042813@dc.cis.okstate.edu>
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# Martin McCormick:
> I wrote a Bourn Shell script which has a while loop in it that
> reads a file line by line. The output of the script is supposed to go
> to a file with a different name for each iteration of the loop. This
> scheme is obviously a rotten idea because all the new files end up
> created, but quite empty. If I take out the > $newfilename.txt
> directive, I get the proper output at stdout so the only problem is
> with changing the file name in the middle of the game several times.
This sounds a bit like a truncation issue.
If you do something like
command1 > bar
# some code
command2 > bar
then the second redirect will truncate the file to 0 bytes
before redirecting the output from command2 into it.
Try using >> instead of >, as it appends to the file.
If this doesn't help, please post the script (or a simplified
version thereof). We're not clairvoyant, you know... :)
HTH,
Mario
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