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Sed questions-Please Help

 
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# 1  
Old 01-23-2006
Data Sed questions-Please Help
I am using this command to replace a text string in a data file:

sed -e 's/ab/test2/g' -e 's/abcxyz/test1/g' datafile

datafile contains:

ab
abcxyz

My results:

test2
test2cxyz

I want my results to be:

test2
test1


how can I replace the EXACT strings?

in this case: ab for test2 and abcxyz for test1

Please help!
# 2  
Old 01-23-2006
sed -e 's/abcxyz/test1/g' -e 's/ab/test2/g' datafile


Jean-Pierre.
# 3  
Old 01-23-2006
Jean, Thank you much!

Are there any other ways? because the datafile randomly come in. It is not in that order every time!
# 4  
Old 01-23-2006
if it is full line, you can use "^" and "$" to mention start of line and end of line...

sed -e 's/^abcxyz$/test1/g' -e 's/^ab$/test2/g' datafile

if it is a single word in a line, then you can use an additional space after the replace string, or any other character next to it...

sed -e 's/^abcxyz /test1 /g' -e 's/^ab /test2 /g' datafile
# 5  
Old 01-23-2006
mahendramahendr,

Thank you much! I will try!
# 6  
Old 01-23-2006
Friends
What happen if :

ab
abcxyz

are not begining of the line. are there ways to replace them exactly?

Please help!
# 7  
Old 01-23-2006
instead of "^" use space or any other character(s) which you think would come before them.... if there are many use them in []
 
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