Update README.md

daacheng · web-flow · commit 6bd7728b78b6 · 2019-03-13T17:56:43.000+08:00
diff --git a/README.md b/README.md
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 0.2. [Linux&#25991;&#20214;&#26435;&#38480;](https://github.com/daacheng/PythonBasic/blob/master/studynotes/Linux%E6%96%87%E4%BB%B6%E6%9D%83%E9%99%90.md)
 
 0.3. [Linux-vim&#32534;&#36753;&#22120;](https://github.com/daacheng/PythonBasic/blob/master/studynotes/Linux-vim%E7%BC%96%E8%BE%91%E5%99%A8.md)
+
+0.4. [shell&#35821;&#27861;](https://github.com/daacheng/PythonBasic/blob/master/studynotes/shell%E8%AF%AD%E6%B3%95.md)
 ## 1&#12289;studynote&#25991;&#20214;&#22841;
 
 1.0. [Python&#24120;&#29992;&#23567;&#30693;&#35782;&#28857;&#65288;&#26356;&#26032;&hellip;&hellip;&#65289;](https://github.com/daacheng/PythonBasic/blob/master/studynotes/Python%E5%B8%B8%E7%94%A8%E5%B0%8F%E7%9F%A5%E8%AF%86%E7%82%B9(%E6%9B%B4%E6%96%B0ing%E2%80%A6%E2%80%A6).md)

-Original file line number
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 .2. [Linux文件权限](https://github.com/daacheng/PythonBasic/blob/master/studynotes/Linux%E6%96%87%E4%BB%B6%E6%9D%83%E9%99%90.md)
 .3. [Linux-vim编辑器](https://github.com/daacheng/PythonBasic/blob/master/studynotes/Linux-vim%E7%BC%96%E8%BE%91%E5%99%A8.md)
++
 +0.4. [shell语法](https://github.com/daacheng/PythonBasic/blob/master/studynotes/shell%E8%AF%AD%E6%B3%95.md)
 ## 1、studynote文件夹
 .0. [Python常用小知识点（更新……）](https://github.com/daacheng/PythonBasic/blob/master/studynotes/Python%E5%B8%B8%E7%94%A8%E5%B0%8F%E7%9F%A5%E8%AF%86%E7%82%B9(%E6%9B%B4%E6%96%B0ing%E2%80%A6%E2%80%A6).md)