x@x:~/Data/blog/maoxiaoxian.github.io/docs$ gem install jekyll
ERROR: While executing gem ... (Gem::FilePermissionError)
You don't have write permissions for the /var/lib/gems/3.0.0 directory.
x@x:~/Data/blog/maoxiaoxian.github.io/docs$ export GEM_HOME=$HOME/.gem/ruby/3.0.0/
export只能在该次安装时解决报错,如果再遇到报错,还需要再执行一次,将环境变量导入
3.0.0替换为自身对应的版本