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I've been doing Windows to z/OS mainframe FTPs for a long time and I've never encountered this situation before today and hope someone can help me out.

I have a group of files that I need to transfer to our mainframe, but when I do so, somehow the characters "o:?" are being added to only the first record in the files.

When I view the files in a text editor I do not see any other characters before the start of the first record. All of the rest of the data looks fine.

The files are all in a fixed-format and I specify that they should be transferred in ASCII, so just the first record is out of whack once on the mainframe.

I've tried using both FTP from the Windows Command Prompt as well as FileZilla with the same result.

Unfortunately, because of tight security, I am not able to run mainframe JCL to "get" the file from my workstation and the 3270 emulator software I have to use (Mocha TN3270) does not have transfer capability.

Any ideas?

Thanks in advance.

Martin Prikryl
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MikePolinske
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1 Answers1

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If the file is UTF-8 it could be the Byte order Mark.

The Byte order Mark is 3 bytes at of the beginning of the file and could be treated as normal text by the file transfer program.

Martin Prikryl
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Bruce Martin
  • 260