Need shell/sed script for grep+string replacement


 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting Need shell/sed script for grep+string replacement
# 1  
Old 11-15-2007
Error Need shell/sed script for grep+string replacement

Hi,

Let me explain the situation.

There are many files in a directory and its sub-directories that conatin the string pattern "pa". I want to replace all such instances with the pattern "pranavagarwal"

doing a
Code:
grep "pa" `ls`

does give me all the instances of the occurence of that paatern.

Do i need a sed script in conjunction with this grep to replace all occurences?
What options do i have to do it, I mean, can I do it in more than one way?
# 2  
Old 11-15-2007
Code:
find . -type f | xargs sed -i 's/pa/pranavagarwal/g'

be careful though, pa would also match parrot and darpan

Last edited by Yogesh Sawant; 11-15-2007 at 05:05 AM..
# 3  
Old 11-15-2007
not good enough..

thank you for the post friend,
but the msg i got is..
Code:
sed: illegal option -- i

i know the mistake is mine.
I didn't specify that I'm working on SunOS SPARC version of Unix. may be that's why the -i didn't work.

another thing.. do remember that i want to do it for files in all sub-directories as well..

thank you and ciao!

Last edited by pranavagarwal; 11-15-2007 at 06:06 AM.. Reason: added OS details
# 4  
Old 11-15-2007
Quote:
Originally Posted by Yogesh Sawant
Code:
find . -type f | xargs sed -i 's/pa/pranavagarwal/g'

be careful though, pa would also match parrot and darpan
Perl ?

Code:
find . -type f | xargs perl -pi -e 's/pa/pranavagarwal/g'

Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Sed, Inline replacement of string with spaces

Hello, Just surfed on the web for probable answers but could not get them working. I wish to replace the string containing spaces by another phrase but below answers did not work. My string is: PAIN & GAIN I wish to convert it to: P&G I just need it working with sed with function -i ... (6 Replies)
Discussion started by: baris35
6 Replies

2. Shell Programming and Scripting

Sed: how to use file contents in replacement string

I want to replace a string by contents of file. I am trying the following sed command: cat sample | sed "s^<enter description here>^`cat details`^" But it is not working. a=`cat details` and using $a will not help since it will affect the whitespaces. What am I missing in the above sed... (5 Replies)
Discussion started by: anand_bh
5 Replies

3. Shell Programming and Scripting

Recursive replacement of search string using sed

Dear Unix Forum Group Members, Please do let me know how I can replace the double pipe with single pipe recursively on single record. Sample Input Data: DN set|Call prefix||| Called number address nature 0||| *789|||||||ALL number types 0||| 00||||||||ALL number types 10||... (5 Replies)
Discussion started by: srinu.kadem
5 Replies

4. Shell Programming and Scripting

Sed:- Supported variable replacement after string match?

Hi All, I am trying to replace the variable in the file after the particular match string. It is being replaced if i hardcode the value and with use of "&" with sed. sed -e "s/URL./& http:\\localhost:7223/g" But when am trying to pass the variable it is failing. I tried multiple... (9 Replies)
Discussion started by: sharsour
9 Replies

5. Shell Programming and Scripting

Use regex in replacement string in SED

Hi, I need to use the regex in the replacement string in SED command. something like sed -e ' s/\(^\{5\}\).\{150\}\(.*\)$/\10\{30\}1\{30\}A\{60\}B\{30\}\2/' abc which means for all the lines in file abc that starts with 5 characters, I need to replace character 6-151... (6 Replies)
Discussion started by: snowline84
6 Replies

6. UNIX for Dummies Questions & Answers

sed string replacement question

Hey everybody. I've got a simple problem but am unsure how to resolve it. I am using a script to edit multiple files at once. Inside the script I am using an sed command to make the changes. My problem is that I can only get it to work for stings that contain a word or words. How can I modify it to... (1 Reply)
Discussion started by: iwatk003
1 Replies

7. Shell Programming and Scripting

Exact String replacement with sed

Hi, What should be the syntax to match and replace an exact string using sed? And not replacing any string that contain the value? Eg. testtest etstetst testetst testtttt etsttest testtesttest testtest I only want to replace the line with exact string "testtest" with "123456" ... (2 Replies)
Discussion started by: srage
2 Replies

8. Shell Programming and Scripting

SED complex string replacement

sed -i 's:"ps -ef | grep $(cat $PID_FILE) | grep -v grep":"ps -C java -o pid,cmd | grep ${SERVER_NAME} | cut -d' ' -f1 | grep -v grep":g' scriptName That's what I'm attempting to do. I'm attempting to replace this: ps -ef | grep $(cat $PID_FILE) | grep -v grep with this: ps -C java -o... (5 Replies)
Discussion started by: cbo0485
5 Replies

9. Shell Programming and Scripting

String replacement using sed

I need to search and replace a particular string in a file. Only the exact match of the string should be replaced. eg: File contents : abc abcd abcdef --> Replace only 'abc' with 'xyz', but it should not replace abcd with xyzd. So the o/p should be: xyz abcd abcdef. How can this be done? I... (5 Replies)
Discussion started by: sngk
5 Replies

10. Shell Programming and Scripting

sed problem - replacement string should be same length as matching string.

Hi guys, I hope you can help me with my problem. I have a text file that contains lines like this: 78 ANGELO -809.05 79 ANGELO2 -5,000.06 I need to find all occurences of amounts that are negative and replace them with x's 78 ANGELO xxxxxxx 79... (4 Replies)
Discussion started by: amangeles
4 Replies
Login or Register to Ask a Question