Where is standard error going to?

[guiprav]

If I run:

console.log(sh.exec('echo WHOA THERE, AN ERROR CONDITION... 1>&2'));
console.log(sh.error());

I get:

WHOA THERE, AN ERROR CONDITION...
{ code: 0, output: '' }
null

So how do I get messages from standard error in JavaScript?

[nfischer]

I think there might be a few problems going on here that might need updating. I get very different behavior depending on which commands I run:

$ cat test.js
require('shelljs/global');
exec('echo stdout is showing');
exec('echo stderr is showing >&2');

$ node test.js >/dev/null
stderr is showing

$ node test.js 2>/dev/null
stdout is showing

$ shjs test.js >/dev/null

$ shjs test.js 2>/dev/null
stdout is showing
stderr is showing

This suggests that something is at least broken in the shjs script if not somewhere else as well. I suspect that this is related, and points toward a bug related to the exec() function (shjs is essentially a wrapper for a call to exec('node ' + script_name + args); (see here).

I suspect it should just be modified to support capturing a process's stderr in addition to its stdout, and have both of these returned alongside the return code.

[nfischer]

This was bugging me, so I added this to #268. @n2liquid does this help you achieve what you wanted?

[nfischer]

Closing this, since #268 was merged. If this doesn't work as expected, please reopen this issue and let us know.