Parse text with ruby

Ruby
1

Hello friends,

I have the following txt log file ==>

=================================================================================
[DEBUG] 5/24/07 5:35:50 PM : Finished to read one line : r 250 1006 -63
-65 91 -6 -8 319*
[DEBUG] 5/24/07 5:35:50 PM : Successfully opened DB.
[DEBUG] 5/24/07 5:35:50 PM : Going to read one line.
[DEBUG] 5/24/07 5:35:50 PM : Going to close DB.
[DEBUG] 5/24/07 5:35:50 PM : Successfully closed DB.
[DEBUG] 5/24/07 5:35:50 PM : Going to open DB.
[DEBUG] 5/24/07 5:35:50 PM : Finished to read one line : r 250 1015 -52
-72 91 -6 -8 319*
[DEBUG] 5/24/07 5:35:50 PM : Going to read one line.
[INFO] 5/24/07 5:35:50 PM : Call RaceField constructor.
[INFO] 5/24/07 5:35:50 PM : Opponent has no record of today.
[DEBUG] 5/24/07 5:35:50 PM : Finished to read one line : r 250 1019 -61
-83 92 -7 -8 319*
[DEBUG] 5/24/07 5:35:50 PM : Going to read one line.
[DEBUG] 5/24/07 5:35:50 PM : Going to close DB.

I would like to parse this file with ruby, and to produce a new txt file
where i have only ==>

r 250 1006 -63 -65 91 -6 -8 319*
r 250 1015 -52 -72 91 -6 -8 319*
r 250 1019 -61 -83 92 -7 -8 319*

How can i do that?

thank you
i am a ruby newbie

kostas

2

On Jun 1, 2007, at 14:56 , kostas wrote:

I would like to parse this file with ruby, and to produce a new txt
file
where i have only ==>

r 250 1006 -63 -65 91 -6 -8 319*
r 250 1015 -52 -72 91 -6 -8 319*
r 250 1019 -61 -83 92 -7 -8 319*

Use the right tool(s) for the job:

% cut -f 5 -d: x.txt | grep . | cut -c2-
r 250 1006 -63 -65 91 -6 -8 319*
r 250 1015 -52 -72 91 -6 -8 319*
r 250 1019 -61 -83 92 -7 -8 319*

3

Ryan D. wrote:

Use the right tool(s) for the job:

% cut -f 5 -d: x.txt | grep . | cut -c2-
r 250 1006 -63 -65 91 -6 -8 319*
r 250 1015 -52 -72 91 -6 -8 319*
r 250 1019 -61 -83 92 -7 -8 319*

Who knows if that’s going to work right if other output is mixed in?

$ ruby -ne 'puts $1 if /Finished to read one line : (.)/’ x.txt
r 250 1006 -63 -65 91 -6 -8 319
r 250 1015 -52 -72 91 -6 -8 319*
r 250 1019 -61 -83 92 -7 -8 319*

4

Hi,

r 250 1019 -61 -83 92 -7 -8 319*
You could iterate through each line, scanning for a second ‘:’ and grab
all the text after that.

-Mitchell;

5

On Jun 1, 2007, at 15:26 , Joel VanderWerf wrote:

Who knows if that’s going to work right if other output is mixed in?

Presumably the OP.

6

kostas wrote:
…

=================================================================================
[DEBUG] 5/24/07 5:35:50 PM : Finished to read one line : r 250 1006 -63
-65 91 -6 -8 319*
[DEBUG] 5/24/07 5:35:50 PM : Successfully opened DB.
…
I think that you should tell us some about this log. Eg if '’ character
at the end of line appears always in lines what you want analize?
(and don’t appear in others).
The second important thing is a process of cerate log - if date and time
format are ‘hard coded’ or if they use locale?
…
r 250 1019 -61 -83 92 -7 -8 319

to see this info at the output i use two ‘:’ characters with separate
char behind it. It looks for me to the ‘hard coded’ in app.

Eg code :

logFile = File.new(“path to log file”)

logFile.each do |line|
if line =~ /.:\s.:\s./
line.sub!(/.:\s.*:\s/,’’)
puts line
end
end