vimdiff:tldr:36f0f

The command "vimdiff ${file1} ${file2}" is using the Vim editor's diff feature to compare and highlight the differences between two files.

Here's the breakdown of the command:

• "vimdiff": It launches the Vim editor in diff mode.
• "${file1}": It represents the first file you want to compare. The "${}" indicates that it is a placeholder for the actual file name or path.
• "${file2}": It represents the second file you want to compare.

When you execute this command, Vim opens with two vertical windows side by side, each displaying one file's contents. The lines that differ between the files will be highlighted, making it easy to spot the discrepancies.

With the diff mode active, you can navigate through the differences and perform various actions such as merging changes, editing, copying, and more. To switch between the diff windows, use the "Ctrl+w" keys and the navigation commands within Vim.