Hi Navaid,
I tested for quite some time and found that this worked on my box
(SiteScope 11.33 on Windows, should be the same on 11.32):
I created directories
C:\logs\abclogs\2016-12-19\
and the file
ctsweb.xml
underneath,
so the full name is
C:\logs\abclogs\2016-12-19\ctsweb.xml
The regular expression below finally worked (without quotes!)
"s/C:\logs\abclogs\$year$-$0month$-$0day$\ctsweb.xml/"
Debug logging shows that the date variables are substituted as expected:
DEBUG - Log name [s/C:\logs\abclogs\$year$-$0month$-$0day$\ctsweb.xml/] was substituted with: C:\logs\abclogs\2016-12-19\ctsweb.xml
and the monitor reads from that very file:
DEBUG - Start reading file s/C:\logs\abclogs\$year$-$0month$-$0day$\ctsweb.xml/ from beginning
INFO - * checkLog(C:\logs\abclogs\2016-12-19\ctsweb.xml): isMultiLineSearch=false
One would think that this regular expression doesn't work at all, and in fact SiteScope's Tool returns an error, same for external regular expression testing tools like https://regex101.com/ would fail, but here it works fine.
I guess you might need to experiment with the "E$" a little bit,
mist likely "s/E$\logs\abcLogs\$year$-$0month$-$0day$\ctsweb.xml/" will work.
Individual Debug Logging (Monitor Properties -> Logging Settings) is your best fried for testing.
Greetings
Siggi