node.js 同步执行系统命令 [英] node.js execute system command synchronously

问题描述

我需要 node.js 函数

result = execSync('node -v');

这将同步执行给定的命令行并返回该命令文本的所有标准输出.

that will synchronously execute the given command line and return all stdout'ed by that command text.

ps.同步错误.我知道.仅供个人使用.

ps. Sync is wrong. I know. Just for personal use.

更新

现在我们有了 mgutz 的解决方案，它为我们提供了退出代码，但没有标准输出！仍在等待更准确的答案.

Now we have mgutz's solution which gives us exit code, but not stdout! Still waiting for a more precise answer.

更新

mgutz 更新了他的答案，解决方案就在这里:)
另外，正如 dgo.a 所提到的，有一个独立的模块 exec-同步

mgutz updated his answer and the solution is here :)
Also, as dgo.a mentioned, there is stand-alone module exec-sync

更新 2014-07-30

ShellJS 库到了.认为这是目前最好的选择.

ShellJS lib arrived. Consider this is the best choice for now.

更新 2015-02-10

终于！NodeJS 0.12 原生支持 execSync.
查看官方文档

AT LAST! NodeJS 0.12 supports execSync natively.
See official docs

推荐答案

Node.js(从 0.12 版开始 - 所以有一段时间)支持 execSync:

Node.js (since version 0.12 - so for a while) supports execSync:

child_process.execSync(command[, options])

您现在可以直接执行此操作:

You can now directly do this:

const execSync = require('child_process').execSync;
code = execSync('node -v');

它会做你所期望的.(默认将 i/o 结果通过管道传输到父进程).请注意，您现在也可以spawnSync.

and it'll do what you expect. (Defaults to pipe the i/o results to the parent process). Note that you can also spawnSync now.

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