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computers / comp.os.linux.misc / Re: automated way to fix unpadded numbering?

Re: automated way to fix unpadded numbering?

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From: fritz@spamexpire-202309.rodent.frell.theremailer.net (Fritz Wuehler)
Subject: Re: automated way to fix unpadded numbering?
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Date: Tue, 12 Sep 2023 05:53:54 +0200
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by: Fritz Wuehler - Tue, 12 Sep 2023 03:53 UTC

candycanearter07 <no@thanks.net> [c]:
c> an automated way to [ pad the numbered files ]
c>
c> (converting 1.png, 2.png, 10.png to 001.png, 002.png, 010.png,
c> etc..)

printf(1) is your friend:

for i in *png;do x=$(printf "%03d.png" "${i/.png}");echo mv -v "$i" "$x";done

This command only demonstrates what will be done; remove 'echo' to
actually do it.

If you have like thousands of such files, the for loop above may fail
(the argument expansion will exceed some shell limit).
If that's the case, then use 'xargs(1)' or 'parallel(1)' instead.

Re: automated way to fix unpadded numbering?

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Subject: Re: automated way to fix unpadded numbering?
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by: candycanearter07 - Tue, 12 Sep 2023 04:25 UTC

On 9/11/23 22:53, Fritz Wuehler wrote:
> candycanearter07 <no@thanks.net> [c]:
> c> an automated way to [ pad the numbered files ]
> c>
> c> (converting 1.png, 2.png, 10.png to 001.png, 002.png, 010.png,
> c> etc..)
>
> printf(1) is your friend:
>
>
> for i in *png;do x=$(printf "%03d.png" "${i/.png}");echo mv -v "$i" "$x";done
>
>
> This command only demonstrates what will be done; remove 'echo' to
> actually do it.
>
> If you have like thousands of such files, the for loop above may fail
> (the argument expansion will exceed some shell limit).
> If that's the case, then use 'xargs(1)' or 'parallel(1)' instead.
>

Thanks

--
--
user <candycane> is generated from /dev/urandom

Subject	Author
Re: automated way to fix unpadded numbering?	Fritz Wuehler
Re: automated way to fix unpadded numbering?	candycanearter07