arthas/tutorials/katacoda/case-async-jobs-en/suspend-cancel-job.md

When the job is executing in the foreground, for example, directly executing the command trace Test t, or executing the background job command trace Test t &, then putting the job back to the foreground via fg command, the console cannot continue to execute other command, but can receive and process the following keyboard events:

ctrl + z: Suspends the job, the job status will change to Stopped, and the job can be restarted by bg <job-id> or fg <job-id>

ctrl + c: Stops the job

ctrl + d: According to linux semantics this should lead to exit the terminal, right now Arthas has not implemented this yet, therefore simply ignore this keystroke.