GREP for a tag in XML File

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# 1  
Old 07-29-2013
GREP for a tag in XML File

I have 2 XML Data files with a tag named PARTICIPATION_TYPE and i am trying to grep for that and getting unique values. However one of the xml data file data is not aligned properly like below.

File 1: (works fine when i do grep)
grep "PARTICIPATION_TYPE" file1.xml | sort -u



File 2: (Doesn't works fine when i do grep, it returns multiple lines)
grep "PARTICIPATION_TYPE" file2.xml | sort -u

so i tried this as well but still not working
grep "PARTICIPATION_TYPE" file2.xml | awk -F"<PARTICIPATION_TYPE>" '{print $1}'


please help.

# 2  
Old 07-29-2013
perl -nle '/<PARTICIPATION_TYPE>.*?<\/PARTICIPATION_TYPE>/ && print $&' file.xml

# 3  
Old 07-29-2013
Originally Posted by bartus11
perl -nle '/<PARTICIPATION_TYPE>.*?<\/PARTICIPATION_TYPE>/ && print $&' file.xml

Thank you, can you please explain a bit for the usage of below special character in your post.


print $&

# 4  
Old 07-29-2013
.*? is a "non-greedy" match, meaning it will match shortest possible match, for example if we have sample data:

$& contains the last match.
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