git global gitignore

steps

1. edit .gitconfig file

   1. add excludesfile line to core section

       [core]
           autocrlf = true
           excludesfile = c:/Users/Administrator/.gitignore_global
      

   2. save this file

2. create a new file .gitignore_blobal

   1. add file or folder to ignore

       # eg.
       .idea/
       *.iml
      

3. done