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Awk/Sed One liner for text replacement

 
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# 1  
Old 03-26-2007
Awk/Sed One liner for text replacement
Hi group,

I want to replace the occurance of a particular text in a paragraph.I tried with Sed,but Sed only displays the result on the screen.How can i update the changes in the original file???

The solution should be a one liner using awk and sed.

Thanks in advance.
# 2  
Old 03-26-2007
you can use ">>" or ">" to redirect the results to a new file, or if you version of sed supports -i, it will update the file for you.
# 3  
Old 03-26-2007
I want the updates in the same file......what is the -i option in sed used for???
# 4  
Old 03-26-2007
If you have perl try this
Code:
perl -i -ne ' s/search_str/replacement_str/; print ' file

# 5  
Old 03-26-2007
Quote:
Originally Posted by bishnu.bhatta
I want the updates in the same file......what is the -i option in sed used for???
from my sed man page
Quote:
...
-i[SUFFIX], --in-place[=SUFFIX]

edit files in place (makes backup if extension supplied)
....
# 6  
Old 03-26-2007
Tools
thanks anbu23 and ghostdog74 for the solutions.....

we need to add a "g" in the solution provided by anbu23

Code:
perl -i -ne ' s/search_str/replacement_str/g; print ' file

 
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