Command-line Arguments

• --bonusChest

  • Generate a bonus chest.

• --demo

  • Run the server in demo mode.

• --eraseCache

  • Erase server cache

• --forceUpgrade

  • Forces upgrade on all the chunks, so the version of all chunks matches the current server version.

• --help

• --initSettings

  • Loads settings from 'server.properties' and 'eula.txt', then exit.

• --jfrprofile

  • Initializes the Java Flight Recorder. (v1.18+)

• --nogui

  • Doesn't open the GUI when launching the server. Not recommended if you want to monitor your server

• --port <Number>

  • Overrides the server.properties value.

• --safeMode

  • Loads with vanilla data pack only.

• --serverId <String>

• --singleplayer

  • Runs the server in offline mode

• --universe <String>

  • The folder in which to look for world folders.

• --world <String>

  • The name of the world folder

From the wiki.