fzf

1、项目主页
https://github.com/junegunn/fzf

2、关于搜索内容重复的讨论
      zsh Ctrl+R must use option HIST_FIND_NO_DUPS
      ctrl+r history results should be unique by command
      ctrl+r history results should be unique by command
      Bash history: “ignoredups” and “erasedups” setting conflict with common history across sessions

3、入门
      https://codeyarns.com/2017/10/24/how-to-install-and-use-fzf/
      https://segmentfault.com/a/1190000011328080
      https://sourabhbajaj.com/mac-setup/iTerm/fzf.html
4、iterm2中快捷键失效的解决方法
     https://superuser.com/questions/320065/bashrc-not-sourced-in-iterm-mac-os-x