File Size R←⎕FSIZE Y

Y must be a simple integer scalar or 1 or 2 element vector containing the file tie number followed by an optional passnumber. If the passnumber is omitted it is assumed to be zero. The result is a 4 element numeric vector containing the following:

Element	Description
1	the number of first component
2	1 + the number of the last component, (that is, the result of the next ⎕FAPPEND )
3	the current size of the file in bytes
4	the file size limit in bytes

Example

      ⎕FSIZE 1
1 21 65271 4294967295