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Replacing part of a pattern in sed

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# 1  
Old 01-07-2011
Replacing part of a pattern in sed
Hi
I have a piece of xml that has a pattern like this
<int>159</int><int>30</int>
I want to find this pattern but only substitute the second part of the pattern to {rid1}.
Is that possible in sed ?
Thanks.

---------- Post updated at 12:10 PM ---------- Previous update was at 12:01 PM ----------

Actually the source xml fragment is :
<int>159</int>\n <int>30</int>
After replacement the output should be
<int>159</int>\n <int>{rid1}</int>

Thanks.
# 2  
Old 01-07-2011
Code:
sed 's/<int>\([0-9]*\)/<int>{rid1}/2' inputFile

OR
Code:
sed 's/[0-9][0-9]*/{rid1}/2' inputFile

Last edited by anurag.singh; 01-07-2011 at 01:25 PM..
This User Gave Thanks to anurag.singh For This Post:
artem.sofs
# 3  
Old 01-07-2011
Hi,
Here is my input file (r.txt):
<int>163</int>\n <int>30</int>
And my sed command in r.sed
s/<int>\([0-9]+\)<\/int>\n\( *\)<int>\([0-9]+\)<\/int>/<int>\{requestId\}<\/int>/2

sed -f r.sed r.txt

produced

<int>163</int>\n <int>30</int>

What am I missing ?

Thanks!
# 4  
Old 01-07-2011
You are trying to use extended regular exp and I believe Extended Reg Exp are used by egrep (or grep -E) and awk. This is not for sed. Others~, pls correct if wrong.
Try command in post #2.
# 5  
Old 01-07-2011
in your matching pattern, replace every following pattern
Code:
[0-9]+

by this one:
Code:
[0-9][0-9]*

# 6  
Old 01-07-2011
I tried the following in r.sed

s/<int>\([0-9][0-9]*\)<\/int>\n\( *\)<int>\([0-9][0-9]*\)<\/int>/<int>\{requestId\}<\/int>/2

No luck. Same output as before:
<int>163</int>\n <int>30</int>
# 7  
Old 01-07-2011
If you'd post your full input file as well as a reprensentative example of the expected output , it would help.

Here is just a little example , i hope it helps.

Code:
# echo '<int>163</int>\n <int>30</int>\n<int>163</int>\n <int>30</int>'
<int>163</int>
 <int>30</int>
<int>163</int>
 <int>30</int>
# echo '<int>163</int>\n <int>30</int>\n<int>163</int>\n <int>30</int>' | sed '/163/N;s:>[0-9][0-9]*<:>{rid1}<:2'
<int>163</int>
 <int>{rid1}</int>
<int>163</int>
 <int>{rid1}</int>
#
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