menuentry "Calculate md5sum" --class=checksum_md5 {
    md5sum "${vtoy_iso_part}${VTOY_CHKSUM_FILE_PATH}"
    
    echo -e "\n\npress ENTER to exit ..."
    read vtInputKey
}

menuentry "Calculate sha1sum" --class=checksum_sha1 {
    sha1sum "${vtoy_iso_part}${VTOY_CHKSUM_FILE_PATH}"
    
    echo -e "\n\npress ENTER to exit ..."
    read vtInputKey
}

menuentry "Calculate sha256sum" --class=checksum_sha256 {
    sha256sum "${vtoy_iso_part}${VTOY_CHKSUM_FILE_PATH}"
    
    echo -e "\n\npress ENTER to exit ..."
    read vtInputKey
}

menuentry "Calculate sha512sum" --class=checksum_sha512{
    sha512sum "${vtoy_iso_part}${VTOY_CHKSUM_FILE_PATH}"
    
    echo -e "\n\npress ENTER to exit ..."
    read vtInputKey
}

menuentry 'Return to previous menu [Esc]' --class=vtoyret VTOY_RET {
    echo 'Return ...'
}