[Info-vax] SYS$CREPRC output to file but its overriding and not appending

[Andrew Commons]

On Friday, 5 November 2021 at 2:22:17 am UTC+10:30, HCorte wrote:
> Running a script/command procedure using the CREPRC with the image LOGINOUT the OUTPUT_PATH is a logical name as is the SCRIPT_PATH and ERROR_PATH. 
> The logical name OUTPUT_PATH point to a file.LOG;1 specifying the version 1 to not generate multiple files since its running every 5 seconds the script/SYS$CREPRC. 
> 
> ISTAT = SYS$CREPRC(pidadr,"SYS$SYSTEM:LOGINOUT.EXE", 
> * SCRIPT_PATH, !input 
> * OUTPUT_PATH, !output log 
> * ERROR_PATH, !error log 
> * ,,"MILLCON",,,,) !process name 
> 
> But instead of appending the new log information to the preexisting one its simply overriding. 
> 
> In documentation 
> VSI_PROGRAM_CONCEPTS_VOL_I.pdf 
> 
> page 28 refers to 
> "In a program that creates a subprocess, you can cause the subprocess to share the input, output, or error device of the creating process" 
> 
> that's not the case that interest me but later on talks about 
> 
> "Use the Assign I/O Channel (SYS$ASSIGN) system service to assign an I/O channel to the device for input/output operations." 
> 
> so my question is SYS$ASSIGN the way to go to make the new log info append to the existing one on file.LOG;1? a bit lost at this point ... 
> 
> Thanks for any help.

So, is the OUTPUT for the main script assigned to the OUTPUT_PATH so that the process and the sub-process are actually sharing it?