Re: EOF does not work in echo

[Cai Qian]

The problem is "cat" does not stop reading when see the EOF through the pipe.

echo -e "hello \004world" | cat > log

you cat still see the Control-D in the log.

Qian

On 5/26/06, Mike Frysinger <vapier@gentoo.org> wrote:
> On Thursday 25 May 2006 18:56, Cai Qian wrote:
> > echo -e "hello \004world" | cat > /dev/null
> >
> > will print out nothing
> >
> > It suggests that "cat" has not seen EOF (004) generated by echo.
>
> you piped the output to /dev/null ... how does that suggest anything ?
>
> looks to me like you're evaluating with the wrong tools ... do something like:
> echo -e "hello \004world" > foo
> hexedit foo
> and you'll see that echo is writing out the 0x04 just fine
> -mike