Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: sed - Search and replace within pattern
Top Forums Shell Programming and Scripting sed - Search and replace within pattern Post 302951804 by Scrutinizer on Tuesday 11th of August 2015 12:04:28 AM
Old 08-11-2015
@wbport. Nice alternate approach. I think s/[^A-Z]//g should be replaced with: s/[^[:alnum:]]//g.
Also, s/\(.*\)\n\(.*\)".*"\(.*\)/\2"\1"\3/ can be simplified to s/\(.*\)\n\(.*\)".*"/\2\1/.

One caveat is that is does not work properly with multiple quoted texts on a line. For that it would need a loop with a conditional branch after that second substitution and it is easiest to achieve if the quotes are removed in the end result, so that it can work its way from back to front..
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Search for a Pattern and Replace

Hello All, Can you help me with this , I need to search a pattern replace it with the new pattern in all the files in a directory. what would be the easiest way to do that? Thanks in advance. :) Sam, (6 Replies)
Discussion started by: sbasetty
6 Replies

2. Shell Programming and Scripting

SED Search Pattern and Replace with the Pattern

Hello All, I have a string "CP_STATUS OSSRC_R6_0_Shipment_R1H_CU AOM_901046 R1H_LLSV1_2008031", and I just want to extract LLSV1, but I dont get the expected result when using the sed command below. # echo "CP_STATUS OSSRC_R6_0_Shipment_R1H_CU AOM_901046 R1H_LLSV1_2008031" | awk '{print... (4 Replies)
Discussion started by: racbern
4 Replies

3. Shell Programming and Scripting

search replace pattern containing slashes

Need help in finding pattern then replacing pattern that contains multiple slashes .. ex . <imgp src="Attention_web.eps.jpg" align="left"> <imgp src="NewToday062308.eps.jpg"> replace with <imgp src="/ww2/adpay/liner/Attention_web.eps.jpg" align="left"> <imgp... (2 Replies)
Discussion started by: aveitas
2 Replies

4. Shell Programming and Scripting

search a pattern and replace the whole line

Hi All, I have a requirement where I have to find a pattern in a file and comment the whole line containing the search pattern. Any ideas in shell is welcome. Thanks in advance, Regards, Arun (3 Replies)
Discussion started by: arun_maffy
3 Replies

5. Shell Programming and Scripting

perl:: search for tow pattern and replace the third pattern

Hi i want to search two pattern on same line and replace onther pattern.. INPut file aaaa bbbbb nnnnnn ttttt cccc bbbbb nnnnnn ppppp dddd ccccc nnnnnn ttttt ffff bbbbb oooooo ttttt now i want replace this matrix like.. i want search for "bbbbb","nnnnnn" and search and replace for... (4 Replies)
Discussion started by: nitindreamz
4 Replies

6. Shell Programming and Scripting

SED Question: Search and Replace start of line to matching pattern

Hi guys, got a problem here with sed on the command line. If i have a string as below: online xx:wer:xcv: sdf:/asdf/http:https-asdfd How can i match the pattern "http:" and replace the start of the string to the pattern with null? I tried the following but it doesn't work: ... (3 Replies)
Discussion started by: DrivesMeCrazy
3 Replies

7. UNIX for Dummies Questions & Answers

pattern containg ' search and replace

Hi guys I'm new to this forum so please help me in this I have a file where i need to replace a pattern value=' ' with the pattern value='abc' and moreover that abc value must be passed from some variable say i assign name=abc and use name as the value to replace instead of the direct string... (10 Replies)
Discussion started by: sundarj
10 Replies

8. Shell Programming and Scripting

search & replace pattern

Hi, My problem is that I have to search a changing pattern and replace it with the wild card char "*" i/p: 99_*_YYYYMMDD_SRC.txt.tar.gz o/p: 99_*_*_SRC.txt.tar.gz The problem is that YYYYMMDD pattern is not static. It could be YYYYMMDDHHMI or could be YYYYMMDDHHMISS. Can... (10 Replies)
Discussion started by: dips_ag
10 Replies

9. Shell Programming and Scripting

How to use sed to search a particular pattern in a file backward after a pattern is matched.?

Hi, I have two files file1.txt and file2.txt. Please see the attachments. In file2.txt (which actually is a diff output between two versions of file1.txt.), I extract the pattern corresponding to 1172c1172. Now ,In file1.txt I have to search for this pattern 1172c1172 and if found, I have to... (9 Replies)
Discussion started by: saurabh kumar
9 Replies

10. Shell Programming and Scripting

sed command to replace two character pattern with another pattern

Not able to paste my content. Please see the attachment :-( (2 Replies)
Discussion started by: vivek d r
2 Replies

LEARN ABOUT PHP

str_ireplace

STR_IREPLACE(3) 							 1							   STR_IREPLACE(3)

str_ireplace - Case-insensitive version ofstr_replace(3).

SYNOPSIS

       mixed str_ireplace (mixed  $search, mixed  $replace, mixed  $subject, [int  &$count])

DESCRIPTION

	This  function	returns  a string or an array with all occurrences of $search in $subject (ignoring case) replaced with the given $replace
       value. If you don't need fancy replacing rules, you should generally use this function instead of preg_replace(3) with the i modifier.

PARAMETERS

	If $search and $replace are arrays, then str_ireplace(3) takes a value from each array and uses them to search and replace on $subject. If
       $replace  has  fewer  values  than  $search,  then  an  empty string is used for the rest of replacement values. If $search is an array and
       $replace is a string, then this replacement string is used for every value of $search. The converse would not make sense, though.

	If $search or $replace are arrays, their elements are processed first to last.

	      o $search
		- The value being searched for, otherwise known as the needle. An array may be used to designate multiple needles.

	      o $replace
		- The replacement value that replaces found $search values. An array may be used to designate multiple replacements.

	      o $subject
		- The string or array being searched and replaced on, otherwise known as the haystack.	If $subject is an array, then  the  search
		and replace is performed with every entry of $subject, and the return value is an array as well.

	      o $count
		- If passed, this will be set to the number of replacements performed.

RETURN VALUES

	Returns a string or an array of replacements.

EXAMPLES

       Example #1

	      str_ireplace(3) example

	      <?php
	      $bodytag = str_ireplace("%body%", "black", "<body text=%BODY%>");
	      ?>

NOTES

       Note

	      This function is binary-safe.

       Caution

	      Replacement order gotcha

	       Because	str_ireplace(3)  replaces  left  to  right, it might replace a previously inserted value when doing multiple replacements.
	      Example #2 in the str_replace(3) documentation demonstrates how this may affect you in practice.

SEE ALSO

       str_replace(3), preg_replace(3), strtr(3).

PHP Documentation Group 													   STR_IREPLACE(3)
All times are GMT -4. The time now is 06:17 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy