Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people, just like you, are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
Solved

printing portion of a line after a pattern match

Posted on 2010-08-16
4
569 Views
Last Modified: 2012-05-10
Hi, I have a number of lines which I need to extract only the portion of the line after a pattern match is found

e.g.

2010-08-16 11:34:57,869 text: text: ....text ID: rest of line

so I want to only show "rest of line" based on it finding a match for "ID:"
(note there coud be a different number of ":" preceeding the pattern to match "ID:")

This is to be used in a Solaris 10 shell script and probably using something like awk, but can't find out how to do this

Thanks
Mark
0
Comment
Question by:mgferg
4 Comments
 
LVL 2

Expert Comment

by:gosvald
ID: 33445432
You can use grep command for this. It should be available on Solaris. You can specify how many lines you want to see as well. If you do not use any extra options it will just give you the line where it found the pattern.
The syntax is:

grep [options] PATTERN [FILE...]
or
grep [options] [-e PATTERN | -f FILE] [FILE...]

So  in you case:

grep -R ID *

this will search for ID in all files. If you want to find out more just read the grep man file.
 
0
 
LVL 8

Accepted Solution

by:
mustaccio earned 25 total points
ID: 33446822
If you are OK with using perl, here's one way to do it:

perl -pn -e 's/^.*ID:(.*)$/$1/' yourinputfile
0
 

Author Comment

by:mgferg
ID: 33447590
-R seems to be an invalid option

and note I don't want the full line - I'm using grep to get that already - I only want portion of the line "after" a "pattern match"
0
 
LVL 84

Assisted Solution

by:ozo
ozo earned 25 total points
ID: 33448048
If not all lines contain a match for ID: you could use
perl -lne 'print $1 if /ID:(.*)/' yourinputfile
0

Featured Post

Free Tool: Site Down Detector

Helpful to verify reports of your own downtime, or to double check a downed website you are trying to access.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

The following is a collection of cases for strange behaviour when using advanced techniques in DOS batch files. You should have some basic experience in batch "programming", as I'm assuming some knowledge and not further explain the basics. For some…
Active Directory replication delay is the cause to many problems.  Here is a super easy script to force Active Directory replication to all sites with by using an elevated PowerShell command prompt, and a tool to verify your changes.
Learn several ways to interact with files and get file information from the bash shell. ls lists the contents of a directory: Using the -a flag displays hidden files: Using the -l flag formats the output in a long list: The file command gives us mor…
In a recent question (https://www.experts-exchange.com/questions/29004105/Run-AutoHotkey-script-directly-from-Notepad.html) here at Experts Exchange, a member asked how to run an AutoHotkey script (.AHK) directly from Notepad++ (aka NPP). This video…

790 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question