Exit Status 255, Connection closed in SFTP

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# 1  
Exit Status 255, Connection closed in SFTP

I'm trying to connect from Server A to Server B to transfer files from A to B. I'm using NUID A1 in Server A and NUID A2 in Server B. I have done the following the steps to setup password-less login.
1. Add the public key of A1 in A to the Authorized keys of A2 in B.
2. Add the public key of Server A to the Known hosts file of A2 in B.

The following command is used to transfer the files from A to B.
sftp -vvv -o BatchMode='yes' -b -f SourceDir/File -d Destination_Dir/File UserID Machine_Name
sftp -vvv -o BatchMode='yes' -b -f /var/tmp/fileA.txt -d /var/tmp/fileA.txt A2 ServerB

In this case the UserID is the NUID A2 in ServerB
Machine Name = Server B

Below is the output I get while attempting connection:
debug1: Connecting to Server B [Server B's IP Address] port 22
debug1: Connection established
debug1: Next Authentication method: publickey
debug1: Offering public key: /export/home/A1/.ssh/id_rsa.pub
debug1: Authentication succeeded (publickey)
debug1: Exit status 255
Connection closed

Kindly help me in resolving this issue. The NUIDs in both the servers are Non-Interactive (hence no password). However the required keys are added in the corresponding locations and verified. Any help is much appreciated and thanked !!!
Moderator's Comments:
Mod Comment Please use CODE tags; (not COLOR tags) to display sample input, sample output, and code segments.

Last edited by Don Cragun; 03-06-2016 at 04:26 PM.. Reason: Change COLOR tags to CODE tags.
# 2  
You request batch mode but don't provice a batchfile. man sftp:
-b batchfile
Batch mode reads a series of commands from an input batchfile instead of stdin.
# 3  
hi RudiC,
Sorry to have not mentioned.. Yes we also pass a batch file to read inputs during the batch mode.. Still the same case. Appreciate your support.. Thanks...
# 4  
How do you pass the batch file?
# 5  
sftp -vvv -o BatchMode='yes' -b 

Last edited by Don Cragun; 03-06-2016 at 04:27 PM.. Reason: Add CODE tags again.

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