Re: [PATCH bpf-next 01/11] samples: bpf: makefile: fix HDR_PROBE "echo"

From: Ivan Khoronzhuk
Date: Tue Sep 10 2019 - 10:54:07 EST


On Tue, Sep 10, 2019 at 01:46:48PM +0300, Sergei Shtylyov wrote:
Hello!

On 10.09.2019 13:38, Ivan Khoronzhuk wrote:

echo should be replaced on echo -e to handle \n correctly, but instead,

s/on/with/?
s/echo/printf/ instead of s/echo/echo -e/

printf looks better.


replace it on printf as some systems can't handle echo -e.

Likewise?
Like some, better avoid ambiguity, for me it works fine - is not enough.
https://pubs.opengroup.org/onlinepubs/9699919799/utilities/echo.html
"A string to be written to standard output. If the first operand is
-n, or if any of the operands contain a <backslash> character, the
results are implementation-defined"

I can guess its Mac vs Linux, but it does mean nothing if it's defined as
implementation dependent, can be any.


Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@xxxxxxxxxx>
[...]

MBR, Sergei


--
Regards,
Ivan Khoronzhuk