LEN - get information about the size and format of a file.

Syntax:

LEN filename

Description:

LEN displays the size of a file and the amount of space actually used. It also indicates the format of the file.

If there is unused space at the end of the file (i.e. space that could be recovered by shrinking the file), LEN sets bit 26 of the program switch word. If the file is using all its allocated space, LEN clears bit 26. In either case, LEN clears bits 18-25. LEN sets bits 18-25 to indicate an error.

File Formats:

LEN recognizes the following file types.

*CF file (used by command file processing)
APL random (produced by the APL file system)
APL workspace
Huffman encoded (produced by the Huff subsystem)
UFAS files (sequential,relative,IDS-II,indexed)
archive index (produced by the ARCHIVE system)
extension editor patch file (produced by $EXTEDIT in batch)
freeze file (produced by the FREEZE subsystem)
old mailbox
object (object deck)
qstar (system-loadable file)
random library (object library)
random source library (produced by $SRCLIB in batch)
run unit (system-loadable file virtual mode)
text (standard system format)

Notes:

At present, LEN does not recognize the new (MAIL8) mailbox format. Eventually, LEN will be modified to recognize the new format.