sort:tldr:0678f

The command "sort --unique ${filename}" is used to sort the contents of a file in alphabetical order and remove any duplicate lines.

Here is a breakdown of the different parts of this command:

• "sort" is the command to sort the lines in a file.
• "--unique" is an option for the "sort" command that removes any duplicate lines from the sorted output.
• "${filename}" is a placeholder for the actual name of the file you want to sort and remove duplicates from. You would replace "${filename}" with the actual name or path of the file you want to process.

So, when you run this command, it will read the contents of the specified file, sort the lines in alphabetical order, and then remove any duplicate lines from the sorted output. The result is the file's contents sorted in alphabetical order with no duplicate lines.