shell script for prepending shebangs

README.md

@@ -38,6 +38,8 @@ Useful functions, tutorials, and other Python-related things
 - Happy Mother's Day [[IPython nb]](http://nbviewer.ipython.org/github/rasbt/python_reference/blob/master/funstuff/happy_mothers_day.ipynb?create=1)
 
 
-**// useful snippets**
+**// useful scripts snippets**
+
+- [Shell script](./useful_scripts/prepend_python_shebang.sh) for prepending Python-shebangs to all .py files in a current directory.
 
 - convert 'tab-delimited' to 'comma-separated' CSV files [[IPython nb]](http://nbviewer.ipython.org/github/rasbt/python_reference/blob/master/useful_scripts/fix_tab_csv.ipynb?create=1)

useful_scripts/prepend_python_shebang.sh

@@ -0,0 +1,14 @@
+# Sebastian Raschka 05/21/2014
+# Shell script that prepends a Python shebang 
+# `!#/usr/bin/python` to all
+# Python script files in the current directory
+# so that script files can be executed via
+# >> myscript.py 
+# instead of 
+# >> python myscript.py
+
+find ./ -maxdepth 1 -name "*.py" -exec sed -i.bak '1i\
+!#/usr/bin/python
+' {} \;
+
+find . -name "*.bak" -exec rm -rf {} \;