Re: binfmt_script and ^M

Jeff Coy
2001-03-06T18:26:33Z

On Tue, 6 Mar 2001, Peter Samuelson wrote:

>
> [Jeff Coy]
> > this issue came up frequently with customers uploading scripts in
> > binary mode trying to run #!/usr/bin/perl^M. The solution for me was
> > to just do the following:
> >
> > cd /usr/bin
> > sudo ln -s perl^V^M perl
>
> So none of your customers tried '#!/usr/bin/perl -w^M'? (Come on,
> doesn't everyone use -w?)
>
> I'm not for treating \r as IFS in the kernel, but the "simple one-time"
> solution is not perfect..
>

'#!/usr/bin/perl -w^M' works without any special handling; the link is
not needed:

11:15:52 jcoy@d-hopper::~
$ cat -vet foo.pl
#!/usr/bin/perl -w^M$
^M$
print "Hello, World!\n";^M$
11:16:52 jcoy@d-hopper::~
$ ./foo.pl
Hello, World!

Jeff
--
The Harvard Law states: Under controlled conditions of light, temperature,
humidity, and nutrition, the organism will do as it damn well pleases.
-- Larry Wall