Depending on the source, you might see slightly different syntax used to describe commands.
Feel free to reference this as we walk through the three examples below the table.
Regardless of what you call them, none should ever be taken literally when executing a command.

It’s also outside any brackets, meaning it’s required.
We’ll take a look at brackets a few paragraphs down.
Brackets are never to be taken literally, so never include them when executing a command.

Inside the brackets is the italicized worddrive, followed by a colon in bold.
Anything italicized is something you must supply, not take literally.
Just as withvol, since:is in bold, it should be typed as shown.

Valid:In this case, the optionaldrive:argument was used just as intended.
The big new concept in this example is the vertical bar.
Vertical bars within brackets indicate optional choices.
Like brackets, vertical bars exist to explain command syntax and are not to be taken literally.
These vertical bars indicate choices, of which you’re able to choose only one.
The correct usage would have beenshutdown /s /d p:0:0.
Valid:All options were used correctly this time.
This is unlike the bracket with vertical bars that indicatesoptionalchoices.
Eithernet use e: \server\filesornet use * \server\fileswould have been valid ways to execute net use in this case.
Valid:We correctly used several options in this execution of net use, including one nested option.
Executingnet use /persistent:yeswould have been a valid use of net use.