Node js - how to execute two windows commands in sequence and get the output

Question

I am trying to execute two windows commands in sequence and get the result of the later one. Something like:

cd ${directory}
sfdx force:source:convert -d outputTmp/ --json

I have browsed and tried a bunch of third-party libraries, like node-cmd. But so far I haven't got any luck yet. As in node-cmd example:

cmd.get(
    `cd ${directory}
    sfdx force:source:convert -d outputTmp/ --json`,
    function(err, data, stderr) {

This works very well on my macOS machine. But on Windows it tends to execute only the first command.

Is there anyway I can resolve this issue? Even some walk around for just cd {directory} + real command can be really helpful

DId you installed all the packages required for the second command on your widows machine (cf: sfdx) ? Does the stderr in the callback return anything ? — Nathan Schwarz
– Nathan Schwarz, Commented Mar 7, 2018 at 23:52
@NathanSchwarz sfdx runs without any issue. In the callback function, the error is null and the data is empty. And if I execute the sfdx command directly, it has no issue. — Lance Shi
– Lance Shi, Commented Mar 7, 2018 at 23:54

Andriy · Accepted Answer · 2018-03-07 23:54:23Z

2

You can try this:

const exec = require('child_process').exec;

exec(`cd dir 
      sfdx force:source:convert -d outputTmp/ --json`, (err, stdout, stderr) => {
  if (err) {
    // node couldn't execute the command
    return;
  }
  console.log(stdout);
});

or by using && without backticks:

const exec = require('child_process').exec;

exec('cd dir && sfdx force:source:convert -d outputTmp/ --json', (err, stdout, stderr) => {
  if (err) {
    // node couldn't execute the command
    return;
  }
  console.log(stdout);
});

answered Mar 7, 2018 at 23:54

Andriy

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1 Comment

Lance Shi Over a year ago

Thank you for that. Actually a simple && can resolve my issue!

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