Using sed to substitute between quotes.

Thread Tools Search this Thread
Top Forums UNIX for Dummies Questions & Answers Using sed to substitute between quotes.
# 1  
Using sed to substitute between quotes.

I'm using sed to perform a simply search and replace. The typical data is:

<fig><image href="Graphics/BAV.gif" align="left" placement="break"

I need to replace the value in the first set of quotes, keeping the remainder of the line the same. Thus:

<fig><image href="NEW_VALUE" align="left" placement="break"

I've tried the following, and variations, but not quite getting the desired result.

sed -e 's/image href=\".*\"/\""$NEW_VALUE"\"/'

My output indicates that all the line, up to the final quote, is getting substituted:


I'd be grateful for any help.

# 2  
Try this:

sed 's/\(.*image href=\)[^ ]*\( .*\)/\1"NEW_VALUE"\2/'

# 3  
awk '/href/{$2="href=\"New_value\""}1' file

# 4  
Many thanks to you both. Both solutions work for me.


Previous Thread | Next Thread
Thread Tools Search this Thread
Search this Thread:
Advanced Search

Test Your Knowledge in Computers #171
Difficulty: Medium
IBM acquired Red Hat for $34 billion USD.
True or False?

10 More Discussions You Might Find Interesting

1. UNIX for Beginners Questions & Answers

Substitute a character with sed

hi all, i'd like to modify a file with sed , i want to substuite a char "-" with "/" how can i do this? Thanks for all regards Francesco (16 Replies)
Discussion started by: Francesco_IT
16 Replies

2. Shell Programming and Scripting

[sed]: Substitute a string with a multiline value

Dear all, I try to replace a string of characters in a file (MyFile.txt) by a multiline value of the variable "Myvar": $ cat MyFile.txt DESCRIPTION '@TargetTable SCHEMA' ( @InputFlowDef ); $ The content of Myvar: $ echo "$Myvar" col1 , col2 , col3 $ (4 Replies)
Discussion started by: dae
4 Replies

3. Shell Programming and Scripting

sed substitute command -- need help

I am trying to do what I thought should be a simple substitution, but I can't get it to work. File: Desire output: I thought I'd start with a sed command to remove the part of the header line preceding the string "comp", then go on to remove the suffix of the target string (e.g. ":3-509(-)"),... (3 Replies)
Discussion started by: pathunkathunk
3 Replies

4. Shell Programming and Scripting

How to substitute a varible in script having value including quotes?

Hi All, We need to run a Connect direct script on Unix server to send a file to Mainframe server and at mainframe end there need to run another job through Runtask with some parameters need to be passed from C:D (unix) to mainframe. My question is I have to pass parameters like DSN and FNAME as... (2 Replies)
Discussion started by: matrix001
2 Replies

5. Shell Programming and Scripting

using sed or gsub to substitute characters!

Is there a way to substitute the URL-encoding references of ( & and ` ) with their actual appearance? for example.... %26 is & say I want to convert every %26 in my file to &..... awk '{gsub(/%26/,"&");print}' Is there a way to do this? I also want to be able to convert ` too! (3 Replies)
Discussion started by: puttster
3 Replies

6. Shell Programming and Scripting

how to substitute filepaths with sed or awk?

I am having the following problem. I am having a lot of files (test_1_01.hea, test_1_02.hea, etc) with the content: project_directory /net/1/d_1/5/ tmp_directory /net/1/d_1/5/ material_directory /net/1/d_1/5/ And I have to substitute the filepaths with new counted ones where the... (3 Replies)
Discussion started by: ergy1983
3 Replies

7. Shell Programming and Scripting

How to substitute the value with in double quotes in perl?

Hi, I have string like this: $str=' DNA OR ("rna AND binding AND protein")'; I just wanted to substitute AND with a blank. How can i do that? I want the output like this: $string= DNA OR ("rna binding protein") (3 Replies)
Discussion started by: vanitham
3 Replies

8. Shell Programming and Scripting

Using sed to substitute first occurrence

I am trying to get rid of some ending tags but I run into some problems. Ex. How are you?</EndTag><Begin>It is fine.</Begin><New> Just about I am trying to get rid of the ending tags, starts with </ and ending with >. (which is </EndTag> and </Begin>) I tried the following sed... (2 Replies)
Discussion started by: quixoticking11
2 Replies

9. Shell Programming and Scripting

Using SED to substitute between two patterns.

Hi All, I'm currently using SED to make various changes to some .xml files I'm working on, but I'm stuck on this particular problem. I want to remove '<placeholder>element-name</placeholder>' from the following: <heading>Element <placeholder>element-name</placeholder> not... (2 Replies)
Discussion started by: Steve_altius
2 Replies

10. UNIX for Dummies Questions & Answers

sed substitute situation

I am having a problem executing a sed substitute in a file. I have tried alot of different things I found in previous posts, however non seem to work. I want to substitute this in $FILE: VALUE=33.4 In the script I have tried the following: prev=$(awk -F"=" '{ print $2 }' $FILE ) new=$(echo... (16 Replies)
Discussion started by: newbreed1
16 Replies

Featured Tech Videos