paste:tldr:4fbce

The command "paste -s ${filename}" is used to concatenate the contents of a file in a horizontal manner and display them as a single line on the console.

Here's a breakdown of the command:

• "paste" is the command itself. It is a Unix/Linux command that is commonly used to merge lines of files.
• "-s" is an option/flag for the "paste" command. It stands for "serial" and tells the command to concatenate the contents of the file horizontally.
• "${filename}" is a placeholder for the actual name of the file you want to process. You should replace it with the path and name of the file you want to concatenate.

When you execute this command, the "paste" command will read the contents of the specified file and concatenate the lines horizontally, separating them with a tab character. The output will be displayed as a single line on the console.