.OBN Format: Edit and Reconvert Back

Question

I have OBN formatted binary files. To convert it to a text based file, I use a command in unix like-

dd if=FileName.OBN of=Output.txt ibs=1169 obs=1169 cbs=1169 conv=ascii

Where -

if : is input file     
of : is output file    
ibs: input block size obs: output    
block size cbs: new line insert at    
block size conv: convert to

After I edit, how do I convert it back to the original format without breaking the format?

Thank you.

Answer 1

I just figured it out. The default ibs is 512. So after you edit the text file, you can convert it back to OBN by issuing the command-

dd if=Output.txt of=FileName.OBN ibs=1169 obs=1169 cbs=1169 conv=ebcdic