Re: Extract Text with "sed"

On Tue, 29 Jan 2008 05:54:38 -0800 (PST), Meendar <meendar@xxxxxxxxx> wrote:
Giorgos Keramidas wrote:
On Tue, 29 Jan 2008 00:08:15 -0800 (PST), Meendar <meendar@xxxxxxxxx> wrote:
I am having a text generated from version output of an executable as

$ myprogram -v
Version: Myprogram/1.2.1 - Centos
Built: Aug 8 2007 13:05:44

I need to extract 1.2.1 from the above output, however i used sed like

$ myprogram -v | sed -e '/s/Myprogram\ /(*) ^-

$ ( echo 'Version: Myprogram/1.2.1 - Centos' ; \
echo foo ) | \
sed -n -e '1s/.*\/\(.*\) - .*/\1/p'
1.2.1

Thanks for the answer, however i couldn't get the actual while i go
with executable.

Just replace the myprogram with httpd and please answer me. It looks
same as myprogram version No

$ httpd -v | sed -n -e '1s/.*\/\(.*\) - .*/\1/p'

There are at least a couple of reasons why this may be happening:

(1) The `httpd' writes to stderr, instead of stdout.

(2) The version line is not the first.

Can you try the variation shown below?

% httpd -v 2>&1 | sed -n -e '/Version:/ s/.*\/\(.*\) - .*/\1/p'

If this doesn't work either, it may be useful to see the output of
something like:

% httpd -v 2>&1 | od -c

.

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