问题
I'm trying to run a sh script and get the following error on Mac:
/usr/bin/perl^M: bad interpreter: No such file or directory
How can I fix this?
回答1:
Remove ^M control chars with
perl -i -pe 'y|\r||d' script.pl
回答2:
/usr/bin/perl^M:
Remove the ^M at the end of usr/bin/perl from the #! line at the beginning of the script. That is a spurious ASCII 13 character that is making the shell go crazy.
Possibly you would need to inspect the file with a binary editor if you do not see the character.
You could do like this to convert the file to Mac line-ending format:
$ vi your_script.sh
once in vi type:
:set ff=unix
:x
回答3:
The problem is that you're trying to use DOS/Windows text format on Linux/Unix/OSX machine.
In DOS/Windows text files a line break, also known as newline, is a combination of two characters: a Carriage Return (CR) followed by a Line Feed (LF). In Unix text files a line break is a single character: the Line Feed (LF).
Dos2unix can convert for you the encoding of files, in example:
dos2unix yourfile yourfile
For help, run: man dos2unix.
回答4:
You seem to have weird line endings in your script: ^M is a carriage return \r. Transform your script to Unix line endings (just \n instead of \r\n, which is the line ending on Windows systems).
回答5:
An alternative approach:
sudo ln -s /usr/bin/perl /usr/local/bin/perl`echo -e '\r'`
回答6:
And if you prefer Sublime Text - simply go to View -> Line Endings and check Unix.
来源：https://stackoverflow.com/questions/17131249/how-to-solve-bad-interpreter-no-such-file-or-directory