Execute multiple shell commands synchronously in Node

Question

I have working code that does exactly what I want but I'm not happy with the method I've used because it doesn't scale well.

Say I want to execute 4 commands, one after the other, to clone a repo and checkout a release to a local folder:

//shell command
var cmd = "cd /Users/xxxx/Documents/DESIGN" +
          " && git clone https://github.com/xxxx/xxxx.git testing" + 
          " && cd testing" +
          " && git checkout 4.0"; 

//execute shell command
var exec = require("child_process").exec;
exec(cmd, function(err, stdout, stderr){
  if (err) console.log(err);
  console.log(stdout);
});

Is there a way to cleanly execute multiple commands and make this more scalable without just adding more to the original command string with the && to join them?

Feiga Lubow · Accepted Answer · 2022-11-25 04:52:35Z

1

There is a lot of stuff you could do. the simplest one would be to use execSync, and execute one command after each other.

as you need commands to be executed one after the other, that would be the solution I would go with.

If you want to stick to an asynchronous pattern, use a control-flow-lib like step or async.

You could even promisify exec with a lib like bluebird.

it all depends on personal coding preferences and the task you need to do.

edited Nov 25, 2022 at 4:52

Feiga Lubow

3325 silver badges17 bronze badges

answered Aug 26, 2015 at 9:52

hereandnow78

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