Getting "#!/bin/bash: No such file or directory"

If you are getting "#!/bin/bash: No such file or directory" when trying to run a bash script on mac written on Windows, the issue is the encoding

According to http://ss64.com/osx/syntax-shellscript.html

If you get an error like "#!/bin/bash: No such file or directory", that is typically an indication that the File encoding or line endings are wrong, use an editor like VI or TextWrangler (shows line encodings at the bottom of the edit window) the script file should be Unicode (UTF-8) and Unix (LF) line endings