[GTALUG] Help need in bash

[Stewart Russell]

On Thu, May 31, 2018, 14:40 Stephen via talk, <talk at gtalug.org> wrote:

>
> #!/bin/bash
> cd /big1/memes/;
>
> shopt -s nullglob
> for f in "*.png"
> do
>      echo $f
>

This is where you get the PNG echoes.

     b=${f%.png}
>      echo $b
> done
>


You can also do

  convert file.{png,jpg}

and bash will do the magic. What I don't know is if that will accept a
glob.

Using convert is okay, but you won't end up with the smallest JPEGs that
way.

Stewart


>
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