mimExplode - mime multipart exploder
    ====================================
    
    changelog:
    
        0.2 modified for spam collection via sendmail
            2005-10-23
        
        0.1 initial version
            2005-08-07

    requires:
    
        bash
        cut
        echo
        grep
        head
        sed
        base64
        file
        
        write permissions to: /var/run/mimExplode
        temporary directory:  /tmp or /dev/shm
        
    usage:
    
        ./mimExplode.sh outputDir <inputFile
        
        - inputFile
            raw SMTP dump, e.g. a mail file from .maildir folders
            or piped from sendmail
            
        - outputDir
            we will put the mail parts into this directory
            
    example:
    
        run ./example.sh, it will create a directory with the parts 
        of the sample.SMTP
        
    internal configuration:
    
        you can modify the "tempdir" from /dev/shm to /tmp if your
        system does not have a shmfs feature (ramdisk).
        
    author:

        Daniel Rozsnyo <daniel@rozsnyo.com>