Got a script with ^M at the end of each line because the file came from a dos machine? With perl you’ll get something like:
/usr/bin/perl^M: bad interpreter: No such file or directory
First of all open this file in vi in binary mode:
vi -b yourscipt.file
Then after typing colon type the following:
NOTE. To get the ^M do NOT use ^ and M. Use control+V then immediately control+M.
Then [enter]. Then to save and exit: