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 <[EMAIL PROTECTED]> 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
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