I'm trying to run a ssh child process in node.js and control it through my program. My code:

var util   = require('util');
var spawn = require('child_process').spawn;
var ssh    = spawn('ssh', ['cloudstudios.ch']);

ssh.stdout.on('data', function (data) {
  console.log('stdout: ' + data);
});

ssh.stderr.on('data', function (data) {
  console.log('stderr: ' + data);
});

ssh.on('exit', function (code) {
  console.log('child process exited with code ' + code);
});

I can enter the password in the console, but I can't do anything after that. I get the following console ouput:

stderr: Pseudo-terminal will not be allocated because stdin is not a terminal.

[email protected]'s password:
stdout: Linux v 2.6.32-5-xen-amd64 #1 SMP Wed Jan 12 05:46:49 UTC 2011 x86_64

The programs included with the Debian GNU/Linux system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.

Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.

stderr: stdin: is not a tty

Has someone an idea how I can get this to work?

Thanks!

I'm trying to run a ssh child process in node.js and control it through my program. My code:

var util   = require('util');
var spawn = require('child_process').spawn;
var ssh    = spawn('ssh', ['cloudstudios.ch']);

ssh.stdout.on('data', function (data) {
  console.log('stdout: ' + data);
});

ssh.stderr.on('data', function (data) {
  console.log('stderr: ' + data);
});

ssh.on('exit', function (code) {
  console.log('child process exited with code ' + code);
});

I can enter the password in the console, but I can't do anything after that. I get the following console ouput:

stderr: Pseudo-terminal will not be allocated because stdin is not a terminal.

[email protected]'s password:
stdout: Linux v 2.6.32-5-xen-amd64 #1 SMP Wed Jan 12 05:46:49 UTC 2011 x86_64

The programs included with the Debian GNU/Linux system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.

Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.

stderr: stdin: is not a tty

Has someone an idea how I can get this to work?

Thanks!

• javascript
• ssh
• node.js
• child-process

• Check this out github.com/steelbrain/node-ssh – Steel Brain Commented May 23, 2015 at 6:26

2 Answers 2

try a little modification:

var ssh = spawn('ssh', ['-tt', 'xxx']);

and:

process.stdin.resume();
process.stdin.on('data', function (chunk) {
  ssh.stdin.write(chunk);
});

I´ve created a SSHClient for node.js now. You can download the sourcecode at https://github.com/VanCoding/NodeSSH.

Hope it will help some other people.