Sponsored Content
Top Forums Shell Programming and Scripting sed newbie scripting assistance Post 302685259 by mthespian on Saturday 11th of August 2012 07:17:49 PM
Old 08-11-2012
Question sed newbie scripting assistance

Howdy folks,
I'm trying to craft a log file summarisation tool for an application that creates a lot of duplicate entries with only a different suffix to indicate point of execution. I thought I'd gotten close but I'm clearly missing something.

Here's a genericized version:
A text_file (infile_grocery.txt) with these contents.
Code:
milk skim fruit apple banana
milk skim fruit orange
milk skim fruit mango
milk skim fruit pomegranate
milk 2 percent fruit cherry tomato
milk 2 percent fruit peach
milk whole fruit pineapple
milk skim fruit strawberry raspberry
milk skim fruit strawberry rhubarb
milk whole fruit pineapple

What I'm hoping to get is:
Code:
milk skim fruit apple banana, orange, mango, pomegranate
milk 2 percent fruit cherry tomato, peach
milk whole fruit pineapple
milk skim fruit strawberry raspberry, strawberry rhubarb
milk whole fruit pineapple

The command line I've cooked up is:
Code:
sed -rn "{H;x;s|^(.+) fruit ([^\n]+)\n(.*)\1 fruit (.+)$|\1 fruit \2, \4|;x}; ${x;s/^\n//;p}" infile_grocery.txt

But the results I'm getting are:
Code:
milk skim fruit apple banana, mango, strawberry raspberry
milk skim fruit strawberry rhubarb
milk whole fruit pineapple

Clearly I'm skipping chunks of lines somehow but I've been staring at this too long and I can't see it. Anyone have any suggestions for me?
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Scripting Newbie

Seems simple but I am having difficulty with this one: I am trying to write a single command line argument (which will be a path) - the program should print out the owner of the path. I can not get anything I write to run. Please help. (5 Replies)
Discussion started by: Kymmers7
5 Replies

2. Shell Programming and Scripting

scripting newbie... some help please?

hi all, i am just getting in to bash scripting, so don't be too harsh... i've created this little backup script, and it's just awfull... ugly, doesn't work like I want it to, the works. anyways, i was hoping some of you might help me improve it and learn a little in the process. what i... (13 Replies)
Discussion started by: jmd9qs
13 Replies

3. Shell Programming and Scripting

Scripting neophyte needs file manipulation assistance

I need to write two shell scripts for an rsync backup solution. The first script will copy all backed up files into a folder named after the original folder, plus a date stamp (so e.g. if the original folder name is 'foo' and is backed up on the 10th of September, then the backup folder will be... (0 Replies)
Discussion started by: LambdaCalculus
0 Replies

4. Shell Programming and Scripting

Assistance in Perl scripting

PFA file "color.txt". Note : There is no newline character in the file. I have manually inserted the newline char to make it easy to understand. I am expecting out in the form as specified in second file "out.txt" I need a perl script to perform the task. Thanks in advance. (2 Replies)
Discussion started by: deo_kaustubh
2 Replies

5. Shell Programming and Scripting

Need assistance with sed

Hi All, I need your assistance, I would like to replace all lines beginning with the word "begin" with the below text: Device | IPMB0-A | IPMB0-B Board Address |Sent SentErr %Errr |Sent SentErr ... (9 Replies)
Discussion started by: Dendany83
9 Replies

6. UNIX for Advanced & Expert Users

Need assistance with sed

Hi All, I need your assistance, I would like to replace all lines beginning with the word "begin" with the below text: Device | IPMB0-A | IPMB0-B Board Address |Sent SentErr %Errr |Sent SentErr ... (10 Replies)
Discussion started by: Dendany83
10 Replies

7. Shell Programming and Scripting

Using ii for irc chat - scripting assistance?

I am using ii for irc on my pogoplug... hxxp://hg.suckless.org/ii/file/d163c8917af7/FAQ If you look at the bottom of there, it states 31 What other fancy stuff can I do with ii? 32 ---------------------------------------- 33 It is very easy to write irc bots in ii: 34... (3 Replies)
Discussion started by: spartan2006
3 Replies

8. Shell Programming and Scripting

Dhcp.config file scripting assistance

Hello everyone! I am brand new at this forum thing and wanted to thank all of you for your time and help in advance for helping me troubleshoot my issue. I am fairly new to shell scripting and scoured the entire internet to find a solution for my issue to no avail and hope you're able to help. ... (2 Replies)
Discussion started by: sedrocks
2 Replies

9. Shell Programming and Scripting

Noob to scripting needs some assistance

Hello, I am in a Unix class and have been out of town. I have been tasked to generate a couple of scripts and ahve never done it before. I have a virtual machine running Ubuntu. The task is below Prompt the system administrator for all valid input parameters Generate a menu to ask which... (1 Reply)
Discussion started by: jkeeton81
1 Replies

10. Shell Programming and Scripting

sed assistance

Hello everyone. I am trying to replace sprintf(buffer, "{\"id\":1,\"method\":\"mining.update_block\",\"params\":}\n", coinid, blockhash); with sprintf(buffer, "{\"id\":1,\"method\":\"mining.update_block\",\"params\":}\n", coinid, blockhash); this is the code I was trying but is... (9 Replies)
Discussion started by: crombiecrunch
9 Replies
LIMITITERATOR(3)							 1							  LIMITITERATOR(3)

The LimitIterator class

INTRODUCTION
The LimitIterator class allows iteration over a limited subset of items in an Iterator. CLASS SYNOPSIS
LimitIterator LimitIteratorextends IteratorIteratorOuterIterator Methods o public LimitIterator::__construct (Iterator $iterator, [int $offset], [int $count = -1]) o public mixed LimitIterator::current (void ) o public Iterator LimitIterator::getInnerIterator (void ) o public int LimitIterator::getPosition (void ) o public mixed LimitIterator::key (void ) o public void LimitIterator::next (void ) o public void LimitIterator::rewind (void ) o public int LimitIterator::seek (int $position) o public bool LimitIterator::valid (void ) EXAMPLES
Example #1 LimitIterator usage example <?php // Create an iterator to be limited $fruits = new ArrayIterator(array( 'apple', 'banana', 'cherry', 'damson', 'elderberry' )); // Loop over first three fruits only foreach (new LimitIterator($fruits, 0, 3) as $fruit) { var_dump($fruit); } echo " "; // Loop from third fruit until the end // Note: offset starts from zero for apple foreach (new LimitIterator($fruits, 2) as $fruit) { var_dump($fruit); } ?> The above example will output: string(5) "apple" string(6) "banana" string(6) "cherry" string(6) "cherry" string(6) "damson" string(10) "elderberry" PHP Documentation Group LIMITITERATOR(3)
All times are GMT -4. The time now is 04:58 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy