Lahey/GNU Fortran

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8.233 STAT — Get file status

Description:
This function returns information about a file. No permissions are required on the file itself, but execute (search) permission is required on all of the directories in path that lead to the file.

The elements that are obtained and stored in the array VALUES:

VALUES(1) Device ID
VALUES(2) Inode number
VALUES(3) File mode
VALUES(4) Number of links
VALUES(5) Owner's uid
VALUES(6) Owner's gid
VALUES(7) ID of device containing directory entry for file (0 if not available)
VALUES(8) File size (bytes)
VALUES(9) Last access time
VALUES(10) Last modification time
VALUES(11) Last file status change time
VALUES(12) Preferred I/O block size (-1 if not available)
VALUES(13) Number of blocks allocated (-1 if not available)

Not all these elements are relevant on all systems. If an element is not relevant, it is returned as 0.

This intrinsic is provided in both subroutine and function forms; however, only one form can be used in any given program unit.

Standard:
GNU extension
Class:
Subroutine, function
Syntax:

CALL STAT(NAME, VALUES [, STATUS])
STATUS = STAT(NAME, VALUES)

Arguments:

NAME The type shall be CHARACTER, of the default kind and a valid path within the file system.
VALUES The type shall be INTEGER(4), DIMENSION(13).
STATUS (Optional) status flag of type INTEGER(4). Returns 0 on success and a system specific error code otherwise.

Example:
          PROGRAM test_stat
            INTEGER, DIMENSION(13) :: buff
            INTEGER :: status
          
            CALL STAT("/etc/passwd", buff, status)
          
            IF (status == 0) THEN
              WRITE (*, FMT="('Device ID:',               T30, I19)") buff(1)
              WRITE (*, FMT="('Inode number:',            T30, I19)") buff(2)
              WRITE (*, FMT="('File mode (octal):',       T30, O19)") buff(3)
              WRITE (*, FMT="('Number of links:',         T30, I19)") buff(4)
              WRITE (*, FMT="('Owner''s uid:',            T30, I19)") buff(5)
              WRITE (*, FMT="('Owner''s gid:',            T30, I19)") buff(6)
              WRITE (*, FMT="('Device where located:',    T30, I19)") buff(7)
              WRITE (*, FMT="('File size:',               T30, I19)") buff(8)
              WRITE (*, FMT="('Last access time:',        T30, A19)") CTIME(buff(9))
              WRITE (*, FMT="('Last modification time',   T30, A19)") CTIME(buff(10))
              WRITE (*, FMT="('Last status change time:', T30, A19)") CTIME(buff(11))
              WRITE (*, FMT="('Preferred block size:',    T30, I19)") buff(12)
              WRITE (*, FMT="('No. of blocks allocated:', T30, I19)") buff(13)
            END IF
          END PROGRAM
     

See also:
To stat an open file: FSTAT, to stat a link: LSTAT