What is emacs?

emacs is a programmers text editor

How to?

• 一年成为Emacs高手
• Practical Emacs Tutorial
• emacs-doom-for-newbies
• Emacs 101 新手求生指南

How to replace a word?

:%s/oldstring/newstring/g

How to replace a word backward?

:%s/oldstring/newstring/gc

How to replace a word ignore word case?

:%s/oldstring/newstring/gi

How to copy/paste one line?

yy

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