paste:tldr:4706a

The command "paste ${file1} ${file2}" is used to concatenate the contents of two files side by side.

Here's the breakdown of this command:

• "paste" is the command we are invoking.
• "${file1}" is a placeholder for the path or name of the first file that we want to paste. It could be a specific file name (e.g., "file1.txt") or a variable containing the file path.
• "${file2}" is a placeholder for the path or name of the second file that we want to paste. Similar to the first file, it can be a specific file name or a variable representing the file path.

When you execute this command, it will merge the contents of "file1" and "file2" side by side, separating them with a tab character. The resulting output will be displayed on the console. Each line of the output will contain corresponding lines from both files. If one file has more lines than the other, it will still paste as many lines as possible, and the remaining lines will be pasted with empty space.