Login or Register to Ask a Question and Join Our Community


Shell Programming and Scripting

Find string in file and append new string after

Login to Discuss or Reply to this Discussion in Our Community

 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting Find string in file and append new string after
# 1  
Old 10-02-2013
Find string in file and append new string after
Hi All,

I'm trying to insert a string into a file at a specific location.

I'd like to add a string after the
Code:
parent::__construct();

in my file.

Code:
<?php  if (! defined('BASEPATH')) exit('No direct script access allowed');

class MY_Controller extends CI_Controller {

	function __construct()
	{
		parent::__construct();
                NEW STRING
	}

I've tried to use the a combination of grep and sed but I don't seem to be having much luck. Any help would be appreciated.

---------- Post updated at 09:09 PM ---------- Previous update was at 09:03 PM ----------

Just a note. I have tried to following with no success

Code:
$(grep -q "parent::__construct();" application/core/MY_Controller.php)
if [ $? -eq 1 ]; then
    sed '/parent::__construct();/ a\ string2' application/core/MY_Controller.php
fi

# 2  
Old 10-02-2013
Code:
sed -e 's/\(parent::__construct();\)/\1\nNEW STRING/'

# 3  
Old 10-02-2013
The following multi-line should work with all sed versions
Code:
sed '
/parent::__construct();/ a\
string2
' application/core/MY_Controller.php

or
Code:
sed '
s/parent::__construct();/&\
string2/
' application/core/MY_Controller.php

Your grep-if is faulty somehow. Perhaps you want
Code:
grep -q "parent::__construct();" application/core/MY_Controller.php
if [ $? -eq 0 ]; then

# 4  
Old 10-03-2013
Using awk and getting text at correct position (tabbed)
Code:
awk -F"\t" '/parent::__construct()/ {$0=$0"\n";for (i=1;i<NF;i++)t=t "\t";$0=$0 t "NEW STRING"}1' application/core/MY_Controller.php
<?php  if (! defined('BASEPATH')) exit('No direct script access allowed');

class MY_Controller extends CI_Controller {

        function __construct()
        {
                parent::__construct();
                NEW STRING
        }

This User Gave Thanks to Jotne For This Post:
jjkilpatrick
# 5  
Old 10-03-2013
Thanks @Jotne. I guess now all I have to do is make a temp file and move that back over the original. Also thanks to @MadeInGermany & @Smiling Dragon
# 6  
Old 10-03-2013
Code:
sed 's/\(parent::__construct();\)/&<patern want to add>/g' <file>

Last edited by Scott; 10-03-2013 at 04:49 AM.. Reason: Please use code tags
# 7  
Old 10-03-2013
This add text behind parent::__construct();, not on a new line below as requested.
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Find string in file and find the all records by string

Hello I would like to get know how to do this: I got a big file (about 1GB) and I need to find a string (for instance by grep ) and then find all records in this file based on a string. Thanks for advice. Martin (12 Replies)
Discussion started by: mape
12 Replies

2. Shell Programming and Scripting

sed - Find a String and append a text end of the Line

Hi, I have a File, which have multiple rows. Like below 123456 Test1 FNAME JRW#$% PB MO Approver XXXXXX. YYYY 123457 Test2 FNAME JRW#$% PB MO Super XXXXXX. YYYY 123458 Test3 FNAME JRW#$% PB MO Approver XXXXXX. YYYY I want to search a line which contains PB MO Approver and append... (2 Replies)
Discussion started by: java2006
2 Replies

3. Shell Programming and Scripting

Append a searched string with another string using sed

Hi, I need to replace and append a string in a text if grep is true. For eg: grep ABC test.txt | grep -v '\.$' | awk {'print $4'} | sed "s/ ? How do I replace all instances of "print $4" using sed with another sring? Eg of the string returned will be, lx123 web222 xyz Want to... (8 Replies)
Discussion started by: vchee
8 Replies

4. Shell Programming and Scripting

Find string in a file and append character

Hi Experts, Is there a way to find a string in a file then append a character to that string then save the file or save to another file. Here is an example. >cat test.txt NULL NULL NULL 9,800.00 NULL 1,234,567.01 I want to find all NON NULL String and add a dollar sign to those... (9 Replies)
Discussion started by: brichigo
9 Replies

5. Shell Programming and Scripting

find string and replace with string in other file

Dear all, I need your help, I have file like this: file1:23456 01910964830098775635 34567 01942809546554654323 67589 26546854368698023653 09778 58716868568576876878 08675 86178546154065406546 08573 54165843543054354305 . .file2: 23456 25 34567 26 67589 27 (2 Replies)
Discussion started by: attila
2 Replies

6. UNIX for Dummies Questions & Answers

Append a string on the next line after a pattern string is found

Right now, my code is: s/Secondary Ins./Secondary Ins.\ 1/g It's adding a 1 as soon as it finds Secondary Ins. Primary Ins.: MEDICARE B DMERC Secondary Ins. 1: CONTINENTAL LIFE INS What I really want to achieve is having a 1 added on the next line that contain "Secondary Ins." It... (4 Replies)
Discussion started by: newbeee
4 Replies

7. Linux

Find String in FileName and move the String to new File if not found

Hi all, I have a question.. Here is my requirement..I have 500 files in a path say /a/b/c I have some numbers in a file which are comma seperated...and I wanted to check if the numbers are present in the FileName in the path /a/b/c..if the number is there in the file that is fine..but if... (1 Reply)
Discussion started by: us_pokiri
1 Replies

8. Shell Programming and Scripting

sed to find first appearance and append string

I have a file like below #GROUP A belongs to Asia GROUP A jojh hans local admin GROUP A gege fans michel jing jong #GROUP U belongs to USA GROUP U jeff goal hello world My requirement is to grep for first apperence of GROUP A which is not commented and append my name to end of file.... (12 Replies)
Discussion started by: vkk
12 Replies

9. UNIX for Dummies Questions & Answers

How can i append a file name with a string

Hi All How can i append a file name with a string e.g. Lets say i have a file called ABC_TEST_1234_1.dat and i want to append the file name with a lets say 100 so the output file should look like ABC_100_TEST_1234_1.dat i have aroung 9000 file in a directory and want to... (3 Replies)
Discussion started by: Nikhilindurkar
3 Replies

10. Shell Programming and Scripting

Search a string and append text after the string

Hi, I have a file like this... <o t="Batch" id="8410" p="/" g="32"> <a n="name"> <v s="DBBA1MM"/> </a> <a n="owner"> <v r="/Administrator"/> </a> <a n="rights"> <v s="95"/> </a> <a n="debugLevel"> <v s="3"/> </a> <a n="avsStoreLoc"> <v... (8 Replies)
Discussion started by: kesu2k
8 Replies
Login or Register to Ask a Question