$ curl https://news.ycombinator.com/item?id=17205865 > hn.txt

$ grep -i 'php' hn.txt | wc -l 8

$ grep -i 'python' hn.txt | wc -l 50

$ grep -i 'react' hn.txt | wc -l 71

$ grep -i 'java ' hn.txt | wc -l 6

$ grep -i 'java,' hn.txt | wc -l 8

grep -i 'javascript' hn.txt | grep -v 'javascript:void' | wc -l 35

^^ thanks busterarm

$ grep -i 'objective' hn.txt | wc -l 2

$ grep -i 'object-c' hn.txt | wc -l 0

$ grep -i 'object' hn.txt | wc -l 4

$ grep -i 'haskell' hn.txt | wc -l 7

$ grep -i 'rails' hn.txt | wc -l

24 <<<<<<<

$ grep -i 'mongo' hn.txt | wc -l 10

$ grep -i 'mean' hn.txt | wc -l 21

$ grep -i 'lamp' hn.txt | wc -l

$ grep -i 'docker' hn.txt | wc -l 19

$ grep -i 'aws' hn.txt | wc -l 3

$ grep -i 'devops' hn.txt | wc -l 28

$ grep -i 'android' hn.txt | wc -l 18

$ grep -i 'ios' hn.txt | wc -l 21

$