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Using awk and sed to replace text


 
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# 1  
Question Using awk and sed to replace text

Good Day Every one

I have a problem finding and replacing text in some large files that will take a long time to manually edit.

Example text file looks like this

#Example Large Text File
Code:
unix
linux
dos
squid
bind
dance
bike
car
plane

What im trying to do is to edit all the lines at the same time and add " " to each line so it would look like this.

#Example Large Text File
Code:
"unix"
"linux"
"dos"
"squid"
"bind"
"dance"
"bike"
"car"
"plane"

i managed to use sed to change one line but then i need to know what the text in the line is to change it.

Code:
sed -i 's/bind/"bind"/g' large-txt-file

So what i want to do is to change all the lines regardless of what the text on that line is.

i have tried
Code:
sed -i 's/*/"*"/g' large-txt-file

and
Code:
awk '{sub(*, "*")};' large-text-file

Im new to using awk and sed.

Any help would be greatly appreciated.

Smilie

Last edited by Corona688; 06-01-2015 at 01:09 PM..
# 2  
Test it with this one:

Code:
sed 's/^.*$/"&"/g' largefile.txt

Make the change to the file with this one and create a backup (largefile.txt.ORIG):
Code:
sed -i.ORIG 's/^.*$/"&"/g' largefile.txt


Last edited by in2nix4life; 06-01-2015 at 11:35 AM.. Reason: Typo
# 3  
Thank you in2nix4life it worked for me !.
# 4  
No problem. Smilie
# 5  
The sed expression can be simplified
Code:
sed 's/.*/"&"/'

Alternative
Code:
sed 's/^/"/; s/$/"/'


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