List of commands you use most often

Trick copyright: The Book of Secret Knowledge <https://github.com/trimstray/the-book-of-secret-knowledge>

history | \
awk '{CMD[$2]++;count++;}END { for (a in CMD)print CMD[a] " " CMD[a]/count*100 "% " a;}' | \
grep -v "./" | \
column -c3 -s " " -t | \
sort -nr | nl |  head -n 20

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