goodMsg.js

#!/usr/bin/env node
const fs = require('fs')
var run= function (obj) {
	let str = ''
	obj.forEach((item, index) => {
		str += item
	})
	let name = str.slice(0, str.indexOf('http'))
	let address = str.slice(str.indexOf('http'))
	if(name && address) {
		const fileName = './msg.md'
	  	const readAble = fs.createReadStream(fileName)
		var body = ''
		readAble.on('data', (chunk) => {
		  body += chunk
		})
		readAble.on('end', () => {
			if(~body.indexOf(address)) {
				console.log('已分享过本篇文章！')
				return null
			} else {
				if(!body.match(/\n{2}/)) {
					body = body.replace(/\n/, ` - [${name}](${address})\n`)
				} else {
					body = body.replace(/\n/, `\n - [${name}](${address})\n`)
				}
				fs.writeFile(fileName, body, (err) => {
				  	if (err) throw err;
				  	console.log('文件：'+ fileName.slice(2) +' 已经更新')
				});
			}
		})
	} else {
		console.log('请输入完整参数:',name,address)
	}
	
};
//获取除第一个命令以后的参数，使用空格拆分
run(process.argv.slice(2));