extracting numbers from strings - Shell Programming and Scripting

gobi · #1 (**permalink**) 05-26-2008

Hello all,

I am being dumb with this and I know there is a simple solution.

I have a file with the follwing lines

Code:

 bc stuff (more)...............123
 bc stuffagain (moretoo)............0
 bc stuffyetagain (morehere)......34
 failed L3 thing..............1
 failed this status.............24
 failed that status.............253
 failed some kind of check........0

I want to pull the numbers off the end of the lines. I can use cut but that is not very robust. I have been using sed but cannot get it to work properly.

I don't think this is very hard. It's been a long day.

Thanks!

gobi

jaduks · #2 (**permalink**) 05-26-2008

If you just want to extract the last field:

Code:

$ sed -n 's/.*\.//;p' gobi.txt
or
$ awk 'BEGIN{FS="."} {print $NF}' gobi.txt

And to extract the digits:

Code:

$ sed 's/.*\.\.\([0-9]*\).*/\1/' gobi.txt

//Jadu

gobi · #3 (**permalink**) 05-26-2008

yes thank you.

I left out the \.\. from the sed command. like I said its been a long day.

Thanks!

More UNIX and Linux Forum Topics You Might Find Helpful
Thread	Thread Starter	Forum	Replies	Last Post
Extracting lines between 2 strings only if the pattern patches	simran	Shell Programming and Scripting	5	04-23-2008 01:58 PM
extracting a set of strings from a text file	Deanne	Shell Programming and Scripting	2	09-20-2007 08:31 PM
Extracting the lines between 2 strings of a file	babloo	Shell Programming and Scripting	2	02-14-2007 07:27 AM
Help with extracting strings from a file	cmsdelhi	Shell Programming and Scripting	7	01-12-2007 05:49 AM
Extracting strings	hugow	UNIX for Dummies Questions & Answers	1	06-24-2005 03:09 AM

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode