Warning-exit code 1-indicates a service is in warning state.
WARNING—退出代码1—表示服务处于警告状态。
Unknown-exit code 3-indicates a service is in unknown state.
UNKNOWN—退出代码3—表示服务处于未知状态。
The other just returns silently; no error message, no unusual exit code.
而另一种实现只是无声地返回，没有错误消息，也没有不寻常的退出代码。
Listing 1 shows a very simple program that simply exits with an exit code of 2.
清单1给出一个非常简单的程序，它的作用仅仅是使用退出码2退出。
Channel requests relay information such as the exit code of a server-side process.
通道请求转送信息，比如服务器端流程的退出代码。
Block until a container stops, then print its exit code.
阻塞运行直到容器停止，然后打印出它的退出代码。
Specifies the exit code that is provided by the executed command.
指定由执行的命令提供的退出代码。
The function returns an integer, which represents the exit code for the child process.
这个函数返回一个整数，代表子进程的退出码。
When a shell script process exits or returns to the parent process, the exit code should be 0.
当shell脚本进程退出或返回到父进程时，退出码应该是0。
If this program exits with anything other than exit code 100, it will be automatically restarted.
如果此程序退出时的退出码不是100，程序将自动重启。
Typically, this exit code is 0 to indicate success with other values indicating different types of errors.
一般情况下，此退出代码为0指示成功；若为其他值，则指示不同类型的错误。
An application typically returns an exit code to the operating system to indicate whether an application exited successfully or not.
应用程序通常都会向操作系统返回一个退出代码，指示应用程序是否已成功退出。
An application typically returns an exit code to the operating system to indicate whether an application exited successfully or not.
应用程序通常都会向操作系统返回一个退出代码，指示应用程序是否已成功退出。
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