./configure : /bin/sh^M : bad interpreter [duplicate]
Solution 1:
To fix, open your script with vi or vim and enter in vi command mode (key Esc), then type this:
:set fileformat=unix
Finally save it
:x! or :wq!
Solution 2:
Looks like you have a dos line ending file. The clue is the ^M.
You need to re-save the file using Unix line endings.
You might have a dos2unix command line utility that will also do this for you.
Solution 3:
Or if you want to do this with a script:
sed -i 's/\r//' filename