Classic shell one-liner: split text into words, sort, count uniques, sort by count. Useful for log analysis, content audits, and tag-cloud-style summaries.
Bash
# 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 | headSave your own code snippets
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