SFTP file to remote server getting back exit status 1

Question

I am uploading a file via sftp from one server to another server. Normally i will get exit status 0 to indicate the transfer is success.

But there are some instances where i will get exit status 1.

Why is this so? How do i base on this exit status to know what exactly went wrong?

Answer 1

Surely something must be written to stdout or stderr... are you certain you're not redirecting stdout to /dev/null?

Answer 2

What SFTP client are you using? Normally you will be able to switch on verbose logging to figure out what the problem is.