If i do this
cut -d"/" -f5 | egrep -e "p2"
it will be grepping on the output because we are using the pipe....

grep pattern a.log|grep -e "p1" |cut -d":" -f1,2,3,4,8,9,10|cut -d"/" -f5 -e "p2" |cut -d":" -f1,2,3,4,6|cut -d"/" -f5 >> file

So i used the grep -e


I want to search for pattern one do the cutting part then search for pattern two and do the cutting part for that in the same log instead of grepping two times

grep pattern a.log|grep "p1" |cut -d":" -f1,2,3,4,8,9,10|cut -d"/" -f5
grep pattern a.log|grep "p2" |cut -d":" -f1,2,3,4,6|cut -d"/" -f5

i have to execute the above command by using grep only once :-)