Which directory to save as in?

[ubt <pro.info.ubt () gmail com>]

Learning metasploit lately,want try writing an exploit for the File
Sharing Wizard 1.5 bof.I noticed that it is of AF_INET and SOCK_STREAM
socket connection using the HTTP 1.0 HEAD command.So which directory to
save the rb file as in if I finished writing the exploit? Or that will
make no difference? 

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