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extract till occurance of a string

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# 1  
Old 06-29-2010
extract till occurance of a string
hi ,
i have an xml that comes in a single, the entire xml file is read as a single line when i open in edit plus or unix. i need to amend the contents of this xml file.

below is the extract from the file

HTML Code:
<rpc-reply xmlns="urn:ietf:params:xml:ns:netconf:base:1.0" message-id="1"><data><IntegratedSite xmlns="http:google.com">[B]<Pattern>[/B]<BladeSystem><name>SIS</name><alias>SIS</alias><swgRef xmlns:IntegratedSite="http://www.google.com">/IntegratedSite:IntegratedSite/IntegratedSite:Software/IntegratedSite:SoftwareInventory/IntegratedSite:SoftwareGroup[IntegratedSite:prodNo="CXS10138"][IntegratedSite:prodRev="R4L06"]</swgRef>
I need to append <Is> before the occurance of tag <Pattern> ..

i tried the below but it did not work ..

Code:
sed -e 's/<Pattern>/<Is><Pattern>/' file >file1.

but it is generating file1 with zero byte for some reason .. Please suggest what could be done here.
# 2  
Old 06-29-2010
Strange, but the same is working OK with me. Try like this:

Code:
 
sed -e 's!<Pattern>!<Is><Pattern>!' file > file1

Please note that if the file is from windows you need to check for carriage returns and try dos2unix.
# 3  
Old 06-29-2010
Quote:
Originally Posted by sais
Code:
sed -e 's/<Pattern>/<Is><Pattern>/' file >file1.

Did you verify that the blue marked part of the command works, respectively prints some output Smilie
# 4  
Old 06-29-2010
i tried that command with dummy input files, they replace the string <Pattern> with <Is><Pattern> but when i try it on the xml file then it is not giving any output.

i tried the below ... but that is also generating a file with zero byte

Code:
sed -e 's!<Pattern>!<Is><Pattern>!' file > file1

# 5  
Old 06-29-2010
What does it give:
Code:
perl -ne '/...Pattern.../;print $&' file | od -c

# 6  
Old 06-30-2010
Code:
0000000   s   >   <   P   a   t   t   e   r   n   >   <   B
0000015

this was the output for that i got for that perl command.
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