sudo gem install homesick
homesick clone dfang/bash
homesick link bash
homesick pull bash
brew install fasd fzf tree ssh-copy-id
如果还没有安装ruby,使用系统自带有的ruby,gem install homesick之后,homesick 命令仍然不可用,可以通过gem environment | grep -A5 "GEM PATHS"
找到gem的执行路径,比如/Library/Ruby/Gems/2.6.0/gems/homesick-1.1.6/bin/homesick -h