Ctrl + C 终止 是强制中断程序的执行,,进程已经终止。
Ctrl + Z 是将任务中止（暂停的意思）,但是此任务并没有结束,他仍然在进程中他只是维持挂起的状态linux命令,用户可以使用fg/bg操作继续前台或后台的任务linux命令,fg命令重新启动前台被中断的任务,bg命令把被中断的任务放在后台执行。
Ctrl + S 挂起
CTRL+Z stops (pauses) a job
CTRL+C terminates a job
with CTRL+C you cannot resume the process but with CTRL+Z the job can be resumed by just entering at the command promt:
fg %1
if you have multiple processes paused then you should do
jobs
to see the output and select the appropriate number to resume e.g.
fg %3
resumes the third job in the list. You can also have jobs running in the background with
bg %n
where n is the job number.
原文：https://www.cnblogs.com/sinferwu/p/11056636.html
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