How to get Bash command history statistics, like the most used commands in the last 6 months?

Question

How can I see, for example, what are my most used commands in the last 6 months in bash? Can I store this data somewhere?

Answer 1

history|awk '{print $2}'|awk 'BEGIN {FS="|"} {print $1}'|sort|uniq -c|sort -rn|head -30

From a thread on the Arch Linux boards