Re: binfmt_script and ^M

Robert Read
2001-03-05T20:40:07Z

On Mon, Mar 05, 2001 at 07:58:52PM +0100, Pozsar Balazs wrote:
>
> And what does POSIX say about "#!/bin/sh\r" ?
> In other words: should the kernel look for the interpreter between the !
> and the newline, or [the first space or newline] or the first whitespace?
>
> IMHO, the first whitespace. Which means that "#!/bin/sh\r" should invoke
> /bin/sh. (though it is junk).
>

The line terminator, '\n', is what terminates the interpreter. White
space (in this case, only ' ' and '\t') is used to seperate the
arguments to the interpreter. This allows scripts to pass args to
intepreters, as in #!/usr/bin/per -w or #!/usr/bin/env perl -w

So is '\r' a line terminator? For Linux, no. Should '\r' seperate
arguments? No, that would be very strange.

robert