本文介绍了如何通过 NodeJS 子进程运行命令?的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我正在尝试通过 NodeJS 子进程在 Windows 上运行命令:
I am trying to run commands on Windows via NodeJS child processes:
var terminal = require('child_process').spawn('cmd');
terminal.stdout.on('data', function (data) {
console.log('stdout: ' + data);
});
terminal.stderr.on('data', function (data) {
console.log('stderr: ' + data);
});
terminal.on('exit', function (code) {
console.log('child process exited with code ' + code);
});
setTimeout(function() {
terminal.stdin.write('echo %PATH%');
}, 2000);
当它调用 ti.stdin.write
时,它会将其写入 stdin
描述符,但是我如何触发 cmd
在这点?当您实际输入命令提示符时,如何发送您执行的输入"键信号?目前我没有收到 cmd
的回复.
When it calls ti.stdin.write
, it writes it to the stdin
descriptor, but how do I trigger cmd
to react at this point? How do I send the "enter" key signal that you do when you are actually typing in command prompt? Currently I get no response from cmd
.
推荐答案
发送换行符 将执行命令.
.end()
将退出 shell.
Sending a newline will exectue the command.
.end()
will exit the shell.
我修改了示例以在 osx 上使用 bash.
I modified the example to work with bash as I'm on osx.
var terminal = require('child_process').spawn('bash');
terminal.stdout.on('data', function (data) {
console.log('stdout: ' + data);
});
terminal.on('exit', function (code) {
console.log('child process exited with code ' + code);
});
setTimeout(function() {
console.log('Sending stdin to terminal');
terminal.stdin.write('echo "Hello $USER. Your machine runs since:"
');
terminal.stdin.write('uptime
');
console.log('Ending terminal session');
terminal.stdin.end();
}, 1000);
输出将是:
Sending stdin to terminal
Ending terminal session
stdout: Hello root. Your machine runs since:
stdout: 9:47 up 50 mins, 2 users, load averages: 1.75 1.58 1.42
child process exited with code 0
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