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Date: Sun, 4 Mar 2012 15:37:32 +0100
Message-ID: <CAHYJk3TEsrLmhKuoM9dRvM+dW2VM43DTFNaPv1gEt_MEigWXvQ@mail.gmail.com>
Subject: Re: if the file is not found the files is not found is the file not found
From: Mikael Magnusson <mikachu@gmail.com>
To: meino.cramer@gmx.de
Cc: zsh-users@zsh.org
Content-Type: text/plain; charset=UTF-8

On 4 March 2012 15:31,  <meino.cramer@gmx.de> wrote:
> Hi,
>
>  ... the cat has bitten into its own tail... somehow...
>
>
> I wrote a script which handles dvbt streamed files. The process
> creates some temporary files, which I want to remove afterwards,
> because they normally big ones.
>
> First I wrote
>
>    rm -f ${f}-[0-9]*.mp2
>
> which breaks which an error, if the certain has not created files
> of that pattern ... despite the "-f" of the "rm" command.
>
> Then I treid to check for the existence of such files in beforehand
> this way:
>
>     [ -f ${f}-[0-9]*.mp2 ]] && rm -f ${f}-[0-9]*.mp2
>
> . Which fails for the same reason.
>
> Did I get lost here? ;)
>
> How many cats do I need to get one, which does not bit into
> the tail of the next cat I enter into the script ?
>
> Who knows of the according dog to chase the cats away and make
> my script work? ;) :))
>
> Thanks a lot for any help in advance!

If you setopt extendedglob you can append (#qN) to the pattern to
suppress the error for that specific pattern, or setopt nullglob to
always do it. ie, it would be ${f}-[0-9]*.mp2(#qN)

-- 
Mikael Magnusson