Why does Vim use hjkl as the direction key?

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Link: http://www.catonmat.net/blog/why-vim-uses-hjkl-as-arrow-keys/

Some time ago, when I was reading about vim, I found out why I used hjkl as the direction key. When Bill Joy developed the VI text editor, he used the ADM-3A terminal with a arrow on the hjkl key on the machine, so naturally, he uses the same key, and the rest is history...

This is what the hjkl key looks like.

Hjkl key on ADM-3A keyboard

The following figure shows the entire terminal used for VI development.

Since Vim inherits from VI, the same buttons are used for all of them ..

The following figure shows the terminal's full keyboard. Note the ESC key location .. Now ..)

That's why the ESC key is used to change the VI Mode, because it is too close to a good press.

If you still want to know why the home directory in UNIX is ~ Symbol, see the upper right corner...

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