afinfo:tldr:5553a

The command "afinfo --warnings" is used to display any warnings related to an audio file specified by the variable "${filename}".

Here's a breakdown of the command:

• "afinfo" is a command-line utility available on macOS for retrieving information about audio files.
• "--warnings" is an option or flag used with the "afinfo" command to specifically display any warnings associated with the audio file.
• "${filename}" is a placeholder variable that should be replaced with the actual name or path of the audio file you want to retrieve information about.

When you execute the command with a valid audio file, it will output any warnings related to the file. This could include various issues or concerns regarding audio quality, metadata, or file format compatibility.