child_process.execSync(command[, options])

• command <string> 要运行的命令。

  ¥command <string> The command to run.

• options <Object>

  • cwd <string> | <URL> 子进程的当前工作目录。

    ¥cwd <string> | <URL> Current working directory of the child process.

  • input <string> | <Buffer> | <TypedArray> | <DataView> 将作为标准输入传给衍生进程的值。如果 stdio[0] 设置为 'pipe'，则提供该值将覆盖 stdio[0]。

    ¥input <string> | <Buffer> | <TypedArray> | <DataView> The value which will be passed as stdin to the spawned process. If stdio[0] is set to 'pipe', Supplying this value will override stdio[0].

  • stdio <string> | <Array> 子进程的标准输入输出配置。参见 child_process.spawn() 的 stdio。除非指定 stdio，否则默认情况下 stderr 将输出到父进程的标准错误。默认值：'pipe'。

    ¥stdio <string> | <Array> Child's stdio configuration. See child_process.spawn()'s stdio. stderr by default will be output to the parent process' stderr unless stdio is specified. Default: 'pipe'.

  • env <Object> 环境变量键值对。默认值：process.env。

    ¥env <Object> Environment key-value pairs. Default: process.env.

  • shell <string> 用于执行命令的 shell。参见 Shell 要求 和 默认 Windows shell。默认值：Unix 上为 '/bin/sh'，Windows 上为 process.env.ComSpec。

    ¥shell <string> Shell to execute the command with. See Shell requirements and Default Windows shell. Default: '/bin/sh' on Unix, process.env.ComSpec on Windows.

  • uid <number> 设置进程的用户标识。（请参阅 setuid(2)）。

    ¥uid <number> Sets the user identity of the process. (See setuid(2)).

  • gid <number> 设置进程的群组标识。（参见 setgid(2)）。

    ¥gid <number> Sets the group identity of the process. (See setgid(2)).

  • timeout <number> 允许进程运行的最长时间（以毫秒为单位）。默认值：undefined。

    ¥timeout <number> In milliseconds the maximum amount of time the process is allowed to run. Default: undefined.

  • killSignal <string> | <integer> 衍生的进程将被终止时要使用的信号值。默认值：'SIGTERM'。

    ¥killSignal <string> | <integer> The signal value to be used when the spawned process will be killed. Default: 'SIGTERM'.

  • maxBuffer <number> 标准输出或标准错误上允许的最大数据量（以字节为单位）。如果超过，则子进程将终止并截断任何输出。请参阅 maxBuffer 和 Unicode 的警告。默认值：1024 * 1024。

    ¥maxBuffer <number> Largest amount of data in bytes allowed on stdout or stderr. If exceeded, the child process is terminated and any output is truncated. See caveat at maxBuffer and Unicode. Default: 1024 * 1024.

  • encoding <string> 用于所有标准输入输出的输入和输出的编码。默认值：'buffer'。

    ¥encoding <string> The encoding used for all stdio inputs and outputs. Default: 'buffer'.

  • windowsHide <boolean> 隐藏通常在 Windows 系统上创建的子进程控制台窗口。默认值：false。

    ¥windowsHide <boolean> Hide the subprocess console window that would normally be created on Windows systems. Default: false.

• 返回：<Buffer> | <string> 命令的标准输出。

  ¥Returns: <Buffer> | <string> The stdout from the command.

child_process.execSync() 方法通常与 child_process.exec() 相同，只是该方法在子进程完全关闭之前不会返回。当遇到超时并发送 killSignal 时，该方法将在进程完全退出之前不会返回。如果子进程拦截并处理了 SIGTERM 信号没有退出，父进程会一直等到子进程退出。

¥The child_process.execSync() method is generally identical to child_process.exec() with the exception that the method will not return until the child process has fully closed. When a timeout has been encountered and killSignal is sent, the method won't return until the process has completely exited. If the child process intercepts and handles the SIGTERM signal and doesn't exit, the parent process will wait until the child process has exited.

如果进程超时或具有非零退出代码，则此方法将抛出。Error 对象将包含来自 child_process.spawnSync() 的整个结果。

¥If the process times out or has a non-zero exit code, this method will throw. The Error object will contain the entire result from child_process.spawnSync().

切勿将未经处理的用户输入传递给此函数。任何包含 shell 元字符的输入都可用于触发任意命令执行。

¥Never pass unsanitized user input to this function. Any input containing shell metacharacters may be used to trigger arbitrary command execution.