AWK, print no of records after pattern match.

Hi ALL :).

i have a file,

cat 3 +
dog 5 +
rat 6 -

i want to print no of record having pattern "+".
thanks in advance .

 
awk '/\+/{i++}END{print "No. of + is " i}' infile

Or if you don't <<have>> to use awk:

grep -c + infile