To see your most used shell command.

history-stat.sh

$ 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 -n20
     
     1  1758  30.5208%    git
     2  624   10.8333%    cd
     3  557   9.67014%    vim
     4  305   5.29514%    ls
     5  256   4.44444%    workon
     6  200   3.47222%    honcho
     7  186   3.22917%    python
     8  158   2.74306%    pip
     9  91    1.57986%    mongo
    10  88    1.52778%    tmux
    11  83    1.44097%    clear
    12  76    1.31944%    exit
    13  72    1.25%       pytest
    14  70    1.21528%    brew
    15  58    1.00694%    rm
    16  53    0.920139%   cat
    17  52    0.902778%   source
    18  50    0.868056%   ipython
    19  46    0.798611%   curl
    20  38    0.659722%   which