This small piece of code lets you know the top 10 most-used commands in terminal.
$ history | awk ‘{print $2}’| sort | uniq -c | sort -rn | head -10
We can also do the same using the following code:
$ cut -d\ -f 1 ~/.bash_history | sort | uniq -c | sort -rn | head -n 10 | sed ‘s/.*/ &/g’