## 10.5.8 FORM Specifier

The FORM specifier asks whether a file is connected for formatted or unformatted data transfer. It takes the following form:

    FORM = fm

fm
  Is a character scalar memory reference that is assigned one of the following values:

  - 'FORMATTED': If the file is open for formatted I/O

  - 'UNFORMATTED': If the file is open for unformatted I/O

  - 'UNKNOWN': If the file is not open

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