The -c option counts the system calls rather than displaying them one by one, and -p indicates that the tracer is to attach to a running process.

c 选项表示对系统调用进行计数，而不是逐个显示它们，而 -p 则表示将跟踪器附加于一个正在运行的进程。

youdao

C: (counts it) Four fifty yuan.Here's your change.

出纳员：(数钱)共是450元，这是找给您的零钱。

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