arthas/tutorials/katacoda/command-sysenv-en/completion-of-history-commands.md

If you want to execute the previous command again, you can match the previous command by pressing Up/↑ or Ddown/↓ when you enter halfway.

For example, if sysenv USER was executed before, then after entering sysenv US, you can type Up/↑, and it will be automatically completed as sysenv USER.

If you want to see all the history commands, you can also view them with the history{{execute T2}} command.