This tool is to visualize alias usage to parse command history. You can evaluate whether you use alias efficiently or not.

• It can show reduced types and more redusable types

• It can show how degree you use each alias

• It can show candidate alias_commands

The visabliable shell scripts is the followings:

• zsh ($HOME/.zsh-history)

Install:

gem install alias_metrics

How to use:

$ alias | alias_metrics $ alias | alias_candidates

Case Study:

$ alias | alias_metrics >>

You reduce 10.25% types (29814 / 290970)

If you use alias all, you can reduce more 3.98% types (11575 / 290970)

You often forget the following alias

alias   #used   #forgot forgot rate(%)  command

g       9       1530    99.42   git

_       0       210     100.00  sudo

gco     24      197     89.14   git checkout

ga      516     190     26.91   git add

...

<< I regist alias g=‘git`, but I often forgot to use this alias. This result show I typed “git” 1530 times. So I can reduce 1530 * (3-1) = 3060 types by typing “g” instead of “git”.

$ alias | alias_candidates >> types count command => shorten command 6510 651 git status => “g status”,“gst” 5979 1993 git => “g” 4860 972 ls -G => “ls -G” 3627 1209 vim => no alias 2912 182 bundle exec rake => “be rake” 2900 290 git commit => “g commit” 2695 245 bundle exec => “be” 2544 159 git flow feature => “g flow feature” 2268 324 git add => “g add”,“ga” … << I often use “vim” command. But “vim” command has no alias. If I regsit alias v=‘vim`, I can reduce 1209 * (3-1) = 2418 types by typing “v” instead of “vim”.

Todo:

• It can parse other shell scrpt(bash, csh, etc…)

• Add the function that show Gold Standard

• Acceleration