       1mftruncate 22m[1m-fileid22m] 4mfile24m 4mnewsize0m
              Truncate a file to have a length of at most 4mnewsize24m bytes.

              If the option 1m-fileid 22mis specified, 4mfile24m is an open file identi-
              fier, otherwise it is a file path.

              This command is not available or not  fully  functional  if  the
              underlying  operating system support is not available.  The com-
              mand 1minfox have_truncate 22mwill indicate if this command may trun-
              cate  by file path.  The command 1minfox have_ftruncate 22mwill indi-
              cate if this command may truncate by file id.

              The 1m-fileid 22moption is not available on 1mWindows22m.
