COMPUTE DATE

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COMPUTE DATE

            [SIC\]COMPUTE Modification_Date DATE Filename

        Return  the last modification date of the file Filename into the integer
        variable Modification_Date. Used in procedures to check  when  file  has
        last been changed.

        If the output variable is a 4-bytes integer (Fortran I*4), returned val-
        ue is in seconds since 01-jan-1970. As the  value  will  overflow  after
        19-JAN-2038,  this  syntax  is  obsolescent  and will be removed at some
        point. Consider using I*8 output variable (in nanoseconds)  or  the  SIC
        MODIFIED command.

        If the variable is a 8-bytes integer (Fortran I*8), returned value is in
        nanoseconds since 01-jan-1970. In the latter  case,  your  system  (e.g.
        Linux >= 2.5.48) AND filesystem (e.g. ext4) must support timestamp gran-
        ularity below the second. If not, value precision is limited to  1  sec-
        ond.