grep...

Cond0r

I'm trying to grep something from a file and i'm not too sure how, maybe someone has an idea on how to do this.

The story is as follows:
I have a file: file.log
I want to grep lines of info from it, again and again. For example the lines might be:

[B]ATDT123456[/B]
info inbetween
[B]pppd started[/B]
info inbetween
[B]ATDT654321[/B]
info inbetween
[B]pppd started[/B]

the same over and over again...
What I want to do is grep the lines in bold, over and over again, all down through the file.
I think the best way might be to make a loop in a shell script but i'm not quite sure how to do it.

Any suggestions?

thanks in advance.

C.

Gavin

if it's linux (gnu grep) then you can use egrep as below

egrep '^atdt | ^pppd' file.log

Gav

Cond0r

hmmm I tried that, and it didnt find any results , and it should have.
It's in linux yeah, also gnu grep.
What does the ^ do ?

thanks!

C.

Gavin

it will only check for that word/expression at the start of the line.
try removing them and see if it works ?
failing that, just be lazy and do

grep blah file.log ; grep blah2 file.log

shocking poor way of doing it I know.

Gav

Cond0r

That works... but it's not exactly what I need...
From the original post:

[B]ATDT123456[/B]
info inbetween
[B]pppd started[/B]
info inbetween
[B]ATDT654321[/B]
info inbetween
[B]pppd started[/B]

I need the output to look like this:

ATDT123456
pppd started <also has date here>
ATDT654321
pppd started <also has date here>

Know what I mean?
Tis annoying.

C.

jmcc

Originally posted by Verb
if it's linux (gnu grep) then you can use egrep as below

egrep '^atdt | ^pppd' file.log

egrep -i '^atdt|^pppd' file.log>newfile

The -i switch makes it case insensitive otherwise the grep would miss the ATDT unless you have:
egrep '^ATDT|^pppd started'

Regards...jmcc

Cond0r

Excellent
I played around with egrep read through the man and stuff, have it going nicely now!
Thanks lads

C.