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copied!<p>You are piping the output of the <code>ffmpeg</code> call(s) into the <code>rm</code> command. Since <code>ffmpeg</code> produces no interesting output and <code>rm</code> does not read any input, this doesn't do anything.</p> <p>I'm not sure what you're trying to do. I think you want to remove the flac file after processing. You have several choices: you can first convert all the ffmpeg files, then remove them all; or you can remove each file after it's been processed. I advise the latter, otherwise it will be difficult to only remove the flac file if the conversion succeeded.</p> <p>Rather than use <code>xargs</code>, it's simpler to use <code>find … -exec</code> here. For each flac file, call <code>ffmpeg</code>, and then delete the file if ffmpeg succeeded. If your find doesn't have the <code>-delete</code> action, use <code>-exec rm {} \;</code> instead. Use an intermediate shell to construct the output file name.</p> <pre><code>find . -type f -name '*.flac' \ -exec sh -c 'ffmpeg -i "$0" -acodec libmp3lame -ab 320k "${0%.*}.mp3"' {} \; \ -delete </code></pre> <p>You can use the <code>rm</code> command inside the shell snippet instead.</p> <pre><code>find . -type f -name '*.flac' \ -exec sh -c 'ffmpeg -i "$0" -acodec libmp3lame -ab 320k "${0%.*}.mp3" && rm "$0"' {} \; </code></pre> <p>With some versions of <code>find</code>, if you want the output file to be called <code>foo.flac.mp3</code>, you can skip the intermediate shell.</p> <pre><code>find . -type f -name '*.flac' \ -exec ffmpeg -i {} -acodec libmp3lame -ab 320k {}.mp3 \; \ -delete </code></pre>

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