Help with ls and grep/egrep
 

I have following files in a directory

Pro.log Pro.log1 Pro.log14 Pro.log55
Pro.log.2008-05-18 Pro.log10 Pro.log2 Pro.log6
Pro.log.2008-05-19 Pro.log11 Pro.log3 Pro.log7
Pro.log.2008-05-20 Pro.log12 Pro.log4 Pro.log8
Pro.log.2008-05-21 Pro.log13 Pro.log5 Pro.log9

I want to find only the files which are without date format and in the range of 5-9 ; output should be as

Pro.log5
Pro.log6
Pro.log7
Pro.log8
Pro.log9


I Tried various combinations and the closest I could reach was with

ls | egrep [Pro.log] | egrep [5-9] |egrep -v [-^]

but its also showing Pro.log55 in output.

Please help!!

Thanks

What about this?