[英]NodeJS - Spawn function
I'm working with nodejs and the child process module to execute commands on my platform. 我正在使用nodejs和子进程模块在我的平台上执行命令。 To do that, I use the spawn function .
为此,我使用spawn函数 。
Here's my code: 这是我的代码:
var spawn_execution = executor.spawn(command, args);
spawn_execution.stdout.on('data', function (data) {
console.log('stdout: ' + data);
});
spawn_execution.stderr.on('data', function (data) {
console.log('stderr: ' + data);
});
Nothing fancy. 没有什么花哨。 So I tried a couple of commands that worked like
所以我尝试了几个有效的命令
executor.spawn('C:/path/to/ffmpeg.exe', [...]);
But when I try to use a native windows command, it does not work. 但是当我尝试使用本机Windows命令时,它不起作用。 For instance, I tried:
例如,我试过:
executor.spawn('del', ['C:\\my\\file\\to\\delete']);
When executing this, I've got a ENOENT error which means that the file is not found. 执行此操作时,我遇到ENOENT错误,表示找不到该文件。 So I did another thing:
所以我做了另一件事:
executor.spawn('C:/my/script-delete.exe', ['C:\\my\\file\\to\\delete']);
This script-delete.exe just contains: 这个script-delete.exe只包含:
del %1
So why does the spawn function need to have a script file? 那么为什么spawn函数需要有一个脚本文件呢? Why does it not work with native windows command?
为什么它不适用于本机Windows命令? Do you know a way to make it work with a native command?
你知道一种使用本机命令工作的方法吗?
Thank you! 谢谢!
It doesn't work as the internal commands can't be found from executor.spawn
only cmd.exe
knows them. 它不起作用,因为只有
cmd.exe
知道它们才能从executor.spawn
找不到内部命令。
So it works from a batch file or when you use something like 所以它适用于批处理文件或使用类似的东西
executor.spawn('cmd.exe', ['/C', 'del', 'C:\\my\\file\\to\\delete']);
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