在節點JS使用EXEC傳遞變量和一個字符串

Question

如何傳遞變量和字符串exec = require(child_process).exec;：

exec("echo mysql-server-5.7 mysql-server/root_password password %s | debconf-set-selections",myid); 

它不工作..

Answer 1

嘗試是這樣的

var exec = require('child_process').exec, 
    util = require('util'), 
    emitter = new events.EventEmitter(); 

function puts(error, stdout, stderr) { 
    if (error) { 
     emitter.emit('error', error); 
    } else { 
     emitter.emit('info', stdout.trim()); 
     if (stderr) { 
      emitter.emit('error', stderr.trim()); 
     } 
    } 
} 

exec(util.format("echo mysql-server-5.7 mysql-server/root_password password %s | debconf-set-selections", myid), puts);