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filtering out duplicate substrings, regex string from a string

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# 8  
Old 06-15-2010
Quote:
Originally Posted by kchinnam
Does anyone know how to achieve this using sed ?

perl -pe 's/dp.*// || s/(\w+)\1/\1/' data.txt
Code:
sed 's/dp.*//;s/\([^ ]*\)\1/\1/g' data.txt

This User Gave Thanks to vgersh99 For This Post:
anbu23
# 9  
Old 06-15-2010
Thanks, its working..

Code:
sed 's/dp.*//;s/\([^ ]*\)\1/\1/g' data.txt

s/dp.*//; -->
remove string from each line that starts with 'dp' followed by any character.

s/\([^ ]*\)\1/\1/g -->
For any string/line that is not empty, print only first occurance of the string !?
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