Note that the last two lines re-base the content from Cooked folder to Content folder.
There’s more info in UnrealPak.cpp, line ~582:
* Params:
* -Test test if the pak file is healthy
* -Extract extracts pak file contents (followed by a path, i.e.: -extract D:\ExtractedPak)
* -Create=filename response file to create a pak file with
* where the first number is the private key exponend, the second one is modulus and the third one is the public key exponent.
* -TableMax=number maximum prime number in the generated table (default is 10000)