However, withdrawal from caffeine is seldom dangerous, though it can make one uncomfortable for a few days. The most frequent symptom associated with this withdrawal is a moderate to severe headache. This can occur between 12 and 24 hours after last intake of caffeine.
Make sure you have cheats ON and say /give (player name) command_block. After you get in in your inventory place 5 in a row. Then you right click the first one and put the command /give @a 306. Then exit out of that command block and right click the next one.
OR. nohup /path/to/command-name arg1 arg2 &. Where, 1  command-name: is name of shell script or command name. 2  You can pass argument to command or a shell script. & : 3  nohup does not automatically put the command it runs in the background; you must do that explicitly, by ending the command line with an & symbol.