To start with I would like share following link:
http://www.caliburn.nl/topposting.html
On 31-Jul-07, at 9:23 AM, Sameer Oak wrote:
Bingo,
Aditya, you've got that all right. I just refrained myself to
counter query
to the suggestions to search the kernel code. Friends, FYI,
kernel really does not have to do anything with the shell built
ins. I tried
to get the shell built ins but could not really find or rather
could not
give enough time googling around for the same.
Besides this, Vaibhav, the code snippet you gave had thousands of
flaws. I
don't really start enumerating them now. A hint for you, however,
that code
doesn't say anything about STDOUT_FILENO and STDERR_FILENO (stdout and
stderr what commonly known as, one can find them in unistd.h). I
particularly wanted to see the way these file descriptors were
handled by
echo.c
Anyway...
Aditya thank you so much for pointing my searches to BSDs. I had
almost
forgotten, the same could very well be found in the BSD
locations.
- sameer oak.
On 7/28/07, Aditya Godbole <[EMAIL PROTECTED]> wrote:
On 7/27/07, Dhiraj Khot <[EMAIL PROTECTED]> wrote:
Here is some information which should be useful for you:
There are two source codes for echo command (This can be verified
using
simple basic command type)
- Echo is a shell built in. So each shell has its own source code.
- If a shell does not have a echo command, then Kernel uses its own
source code. > And I believe this should be similar to locating
source code
of any other
commands (like grep, etc). So should'nt be problem with that :)
Am I missing something here? What does the kernel have to do with the
echo command?? Or any command for that matter.
You should be able to get the source of echo built into the code of
the shell, since it is a builtin shell command.
Here is echo from the freebsd 'sh' shell.
http://www.freebsd.org/cgi/cvsweb.cgi/src/bin/sh/bltin/
Hope this helps.
-aditya
Apart from the freebsd's source you may try:
http://www.google.com/codesearch?q=echo
regards,
shantanoo
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