Batch processes run in the background on a machine and check out one license per session. Batch processes include cron; execution of UNIX AT and BATCH commands; and redirect (<) with standard input, STDIN.
If you execute &system at an Arc prompt and start another arc session, you will have started a batch process:
% arc Arc: &system % arc
This also applies to a batch file submitted with the AT command on UNIX or Windows. For example, on Windows, the following batch job is submitted:
C:\> at 8:00 /interactive /every:mwf C:\users\fred\submit.bat
where submit.bat is a batch file that runs arc every Monday, Wednesday, and Friday. This batch job takes its own license.
The following &system calls will not require additional licenses.
Each of these is case sensitive and will execute with allowable abbreviations such as &sys.
Windows
Arc: &sys arc Arc: &sys %ARCHOME%\bin\arc Arc: &sys arc info Arc: &sys info Arc: &sys %ARCHOME%\bin\info Arc: &sys arc %ARCHOME%\bin\info
UNIX
Arc: &sys arc Arc: &sys $ARCHOME/bin/arc Arc: &sys arc info Arc: &sys info Arc: &sys $ARCHOME/bin/info Arc: &sys arc $ARCHOME/bin/info Arc: &sys $ARCHOME/bin/arc info Arc: &sys $ARCHOME/bin/arc $ARCHOME/bin/info Arc: &data arc Arc: &data $ARCHOME/bin/arc Arc: &data arc info Arc: &data info Arc: &data $ARCHOME/bin/info Arc: &data arc $ARCHOME/bin/arc info Arc: &data $ARCHOME/bin/arc $ARCHOME/bin/info