Library /sys$common/syshlp/helplib.hlb  —  CRTL  open
    Opens a file for reading, writing, or editing. It positions the
    file at its beginning (byte 0).

    Format

      #include  <fcntl.h>

      int open  (const char *file_spec, int flags, mode_t mode);
                (ANSI C)

      int open  (const char *file_spec, int flags, . . . );
                (DEC C Extension)
Additional Information: explode extract
Arguments Description Return Values Example
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