mimetype:tldr:0106d

The command "mimetype --all ${filename}" is used to determine the MIME type(s) of a file specified by ${filename}.

Here's a breakdown of the command:

• "mimetype" is the name of the command-line utility that is being executed.
• "--all" is an option flag that instructs the utility to display all possible MIME types associated with the file.
• "${filename}" is a placeholder that represents the actual file name and path.

When you run this command, the utility will analyze the file and retrieve its MIME type information from a predefined database. MIME types are standardized labels used to identify the nature and format of files on the internet. They are important for proper handling and interpretation of files by different software applications and web browsers.

By using the "--all" option, the command will output all MIME types associated with the given file, which may include multiple types if the file supports different formats.