# Created on savesnippets.com · https://savesnippets.com/p952NbPpi5ELB2
# Most common words in a text file
tr -c '[:alnum:]' '\n' < article.txt | \
    tr '[:upper:]' '[:lower:]' | \
    grep -v '^$' | \
    sort | uniq -c | sort -rn | head -20

# Most common HTTP status codes in an access log
awk '{print $9}' access.log | sort | uniq -c | sort -rn

# Most common IPs hitting a 500
awk '$9 == 500 {print $1}' access.log | sort | uniq -c | sort -rn | head