Meanings of getting command in English

He alludes several times to the importance of getting command of the sea.

After getting command in this peculiar way he failed to present himself on the wharf at the appointed time.

Dragon is sensitive to micropauses in trying to decide whether what you said was literal text or an attention- getting command.

The British warships came up the Hudson past the forts, brushing aside our boasted obstructions, destroying our little fleet, and getting command of the river.

Getting command of technique and of methods of reaching and testing generalizations is at first secondary to getting appreciation.

"Warrant, sir!" I said, getting command of my voice as he pronounced that word-" awarrantagainst my mistress!"

"It would be a poor sort of reformation, Jock- "Drewwas getting command of himself-"ifit were only to get-her!

"Don't be frightened, Miss Drew," Filmer was getting command of himself; "there isn't going to be any redemption; nor any girl-that'sall; don't you see?