HP 3000 Manuals HP 3000 Manuals
SDCDE Files
The SDCDE program uses an input file and a log file. These two files are
discussed below.
The Input File
SDCDE accepts input from the file, SDIN. SDCDE can also take input from
another MPE file if you redirect SDIN with an MPE file equation prior to
issuing the RUN command:
:FILE SDIN=input file
If SDIN does not exist, or has not been redirected to another file,
$STDINX (or your terminal) is used as the input file.
The Log File
When SDCDE is executed, all valid commands are logged to the log file
with the formal file designator, SDLOG. This enables you to save the
commands and use them at a later date.
The REDO command and any invalid commands are not logged. However,
commands edited and executed through the REDO command are logged. Any
responses to prompts (either valid or invalid) that appear only in
session mode are omitted from the log file, for example, the prompt that
asks permission to overwrite SDLOG.
When you run SDCDE in session mode, if SDLOG already exists, SDCDE asks
for permission to overwrite the old log file. If the response is
negative, logging is disabled. On the other hand, in batch mode, SDLOG
is automatically overwritten. If no old log file is found and no file
equation for SDLOG is found, SDCDE creates the file. This file is
temporary, however, and must be saved to become a permanent file. If
SDLOG is new, you receive a message telling you to save the file upon
termination of the program.
You can save and rename the log file and then use it as the input file
(SDIN) the next time you run SDCDE.