Nodejs中调用系统命令、Shell脚本和Python脚本的方法和实例

var spawn = require('child_process').spawn;
free = spawn('free', ['-m']);

// 捕获标准输出并将其打印到控制台
free.stdout.on('data', function (data) {
console.log('standard output:\n' + data);
});

// 捕获标准错误输出并将其打印到控制台
free.stderr.on('data', function (data) {
console.log('standard error output:\n' + data);
});

// 注册子进程关闭事件
free.on('exit', function (code, signal) {
console.log('child process eixt ,exit:' + code);
});

var exec = require('child_process').exec;
var cmdStr = 'curl http://www.weather.com.cn/data/sk/101010100.html';
exec(cmdStr, function(err,stdout,stderr){
    if(err) {
        console.log('get weather api error:'+stderr);
    } else {
        /*
        这个stdout的内容就是上面我curl出来的这个东西：
        {"weatherinfo":{"city":"北京","cityid":"101010100","temp":"3","WD":"西北风","WS":"3级","SD":"23%","WSE":"3","time":"21:20","isRadar":"1","Radar":"JC_RADAR_AZ9010_JB","njd":"暂无实况","qy":"1019"}}
        */
        var data = JSON.parse(stdout);
        console.log(data);
    }
});

#!/bin/sh

IP=""
NAME=""
PASSWORD=""
NEWPASSWORD=""

while getopts "H:U:P:N:" arg #选项后面的冒号表示该选项需要参数
do
        case $arg in
             H)
                IP=$OPTARG
                ;;
             U)
                NAME=$OPTARG
                ;;
             P)
                PASSWORD=$OPTARG
                ;;
             N)
                NEWPASSWORD=$OPTARG
                ;;
             ?)  #当有不认识的选项的时候arg为?
            echo "含有未知参数"
        exit 1
        ;;
        esac
done

#先获取userid
USERID=`/usr/bin/ipmitool -I lanplus -H $IP -U $NAME -P $PASSWORD user list | grep root | awk '{print $1}'`
# echo $USERID
#根据userid来修改密码
/usr/bin/ipmitool -I lanplus -H $IP -U $NAME -P $PASSWORD user set password $USERID $NEWPASSWORD

var callfile = require('child_process');
var ip = '1.1.1.1';
var username = 'test';
var password = 'pwd';
var newpassword = 'newpwd';

callfile.execFile('change_password.sh',['-H', ip, '-U', username, '-P', password, '-N', newpassword],null,function (err, stdout, stderr) {
    callback(err, stdout, stderr);
});

# -*-coding:utf-8 -*-
'''
需要模块：sys
参数个数：len(sys.argv)
脚本名：    sys.argv[0]
参数1：     sys.argv[1]
参数2：     sys.argv[2]
'''
import sys
print u"脚本名：", sys.argv[0]
for i in range(1, len(sys.argv)):#这里参数从1开始
    print u"参数", i, sys.argv[i]

var exec = require('child_process').exec;
var arg1 = 'hello'
var arg2 = 'jzhou'
exec('python py_test.py '+ arg1+' '+arg2+' ',function(error,stdout,stderr){
    if(stdout.length >1){
        console.log('you offer args:',stdout);
    } else {
        console.log('you don\'t offer args');
    }
    if(error) {
        console.info('stderr : '+stderr);
    }
});

py_test.py内容如下：
# -*-coding:utf-8 -*-
import sys
print sys.argv