You can compare entire drives and folders at high speed, checking just sizes and modified times, or thoroughly verify every file with byte-by-byte comparisons.
System Requirements, Beyond Compare 5 runs on Macintosh computers, under macOS 12 Monterey and up. Beyond Compare 4 runs on Macintosh computers, under macOS 10 ...
Boot the application, and then go to Beyond Compare > Install Command Line Tools. This will require your password, and will then create two shortcuts to use.