How to catch the exception on SFTP?

Shell Programming and Scripting
1

I just want to send files to remote machine via SFTP, my question is: how can I catch the exception when SFTP command error occur? for example: add a log when network interrupt on SFTP put(or failure on rename the remote file etc.).

the shell run on linux.

2

Can anybody answer this question?

3

What happens if you simply try redirecting the stderr of the sftp command to a log file? a la:

sftp <servername> 2>sftp.err

Then sftp.err file should contain all the errors.

HTH