Addition of particular numbers in a file using awk or grep - awk

Question

I am looking for something like this:
FILE NAME : fruites.txt
Apple a day keeps doctor away
but people dont like it............... 23 peoples found.
Banana_A.1 keeps u fit
and its very tasty.................... 12 peoples found.
Banana_B.2 juices is very good to taste
and most people like them
as well as consumed the most.......... 15 peoples found.
Anar is difficult to eat
as well as its very costly............ 35 peoples found.
grapes are easy to eat
and people like it the most........... 10 peoples found.
fruites are very healthy and improves vitamins.
Apple : The apple tree is a deciduous tree in the rose family best known for its sweet, pomaceous
fruit, the apple.
Banana_A.1: A banana is an edible fruit, botanically a berry, produced by several kinds of large
herbaceous flowering plants in the genus Musa.
Banana_B.2: A banana is an fruit, botanically a kerry, produced by several kinds of large
herbaceous flowering plants in the genus Musa.
Anar : The pomegranate, botanical name Punica granatum, is a fruit-bearing deciduous shrub or
small tree growing between 5 and 8 m tall.
I want the addition of all peoples found except banana
ANS : 68 ( 23+35+10 )
I am able to find the count separately, but unable to subtract them
I tried like this
grep -E ".found" fruites.txt | awk ' { sum+=$3 } END {print sum }'
ANS : 95 (68+27)
grep -E "Banana|.found" fruites.txt | grep -A1 "Banana" | grep -E ".found" | awk ' { sum+=$3 } END {print sum }'
AND : 27 ( only bananas)
Can anyone please help

Answer 1

awk '$1 != "Banana" {s+=$(NF-2)} END { print s}' RS= fruites.txt
The key here is the RS= assignment which makes awk treat each section of text delimited by blank lines as a separate record. Note that you may prefer to write RS="" fruites.txt for clarity, but that is not necessary. Be sure not to omit the space after the =, though, as the key is to have a blank string as the value of RS.
-- Edit --
Given the comments and the modified question, perhaps you want:
awk '! match($1,"Banana") && match($NF, "found") {
s += $(NF-2)} END { print s }' RS= fruites.txt

Answer 2

You could use the below awk command.
$ awk -v RS="\n\n" '!/Banana/ && /peoples found\.$/{s+=$(NF-2)} END { print s}' file
68
The above awk command sets a blank line \n\n as the Record seperator value and check for the non-existence of Banana string and the existence of peoples found. string at the last. If both conditions are satisfied, then only the sum of third column from the last would be calculated. So s+=$(NF-2) also written as s = s + $(NF-2) contains the sum. Printing the value of s at the last will give you the total sum.