Search replace strings between single quotes in a text file

Shell Programming and Scripting
1

Hi There...
I need to serach and replace a strings in a text file.
My file has; books.amazon='Let me read' and the output needed is
books.amazon=NONFOUND

pls if anybody know this can be done in script sed or awk.. i have a list of different strings to be repced by NONFOUND.

any help would be appreciated!!

Thanks
hiano

2 
sed "s/'[^']*'/NOTFOUND/g" infile
3

HI radoulov,

thanks for the quickest reply...
I tried that but no luck...the file generaeted is blank. :frowning:

cat test.txt | \
sed -e "s/'[^']*'/NOTFOUND/g" >test.txt

I need to update the same file with the new string. pls help

4

use it like this..

sed -i "s/'[^']*'/NOTFOUND/g" infile
1 Like
5 
perl -i.bck -pe"
  s/'.*?'/NOTFOUND/g
  " infile
1 Like
6

thanks radoulov and itkamaraj!!!

I want to refine this search.. :slight_smile:

------
My file has; books.amazon='Let me read' and the output needed is

books.amazon=NONFOUND

------

Can I first find the text between string1= books.amazon=' and string2= ' (locate the text beween the cotes)

and then replace by NOTFOUND.!! this way i can replace multiple strings. I have tried this code but no luck..

sed -i 's/\(books.amazon='\)[^<]*\('\)/NOTFOUND/g' abc.txt

pls guide

7 
cat books | sed 's/\(books.amazon=\)\(.*\)/\1NOTFOUND/'

books.amazon= is stored in \1
'Let me read' is stored in \2

8

Thanks MaskofZorro!!

Its working fine...except its failing for multiple similar strings.
If two similar strings are found, its only relacing first occurance. and deleting the rest.

Pls help.