filesize -package:hackage-security -package:http-client -package:turtle -package:pantry -package:unix -package:language-bash -package:filemanip

File size.
For a handle hdl which attached to a physical file, hFileSize hdl returns the size of that file in 8-bit bytes.
hSetFileSize hdl size truncates the physical file with handle hdl to size bytes.
Obtain the size of a file in bytes.