awk Script to parse a XML tag


 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting awk Script to parse a XML tag
# 1  
Old 11-19-2012
awk Script to parse a XML tag

I have an XML tag like this:
<property name="agent" value="/var/tmp/root/eclipse" />

Is there way using awk that i can get the value from the above tag. So the output should be:
/var/tmp/root/eclipse

Help will be appreciated.

Regards,
Adi
# 2  
Old 11-19-2012
If you're using a gnu-like awk that supports a record separator pattern, this might work for you:

Code:
awk '
    /property name=/ {
        gsub( ".*value=\"", "" );
        gsub( "\".*", "" );
        print;
    }
' RS="[<>]"  input-file

# 3  
Old 11-19-2012
Hi Agama,

Thanks for the reply, but that does not work. The script that you provided just removes the <> from the line and displays
property name="agent" value="/var/tmp/root/eclipse" /
as output.

-Adi
# 4  
Old 11-19-2012
If that xml tag does not have a different attribute, you can simply do:-
Code:
awk -F\" '/property name=/ { print $(NF-1); } ' xml_file

# 5  
Old 11-19-2012
Quote:
Originally Posted by asirohi
Hi Agama,

Thanks for the reply, but that does not work. The script that you provided just removes the <> from the line and displays
property name="agent" value="/var/tmp/root/eclipse" /
as output.

-Adi
How were you testing it? if you were using echo to echo it and pipe it into awk, were you using double quotes round the whole string? That won't work. Use single quotes:

Code:
echo '<property name="agent" value="/var/tmp/root/eclipse" />' | awk '
    /property name=/ {
        gsub( ".*value=\"", "" );
        gsub( "\".*", "" );
        print;
    }
' RS="[<>]"

If you're testing some other way, then I'd be curious what your version of awk is. Works for me with gnu awk 4.0; output from above is
Code:
/var/tmp/root/eclipse

# 6  
Old 11-20-2012
Hi Agama,

You solution works but i just confirmed the XML tag is:
<property name='agent' value='/var/tmp/root/eclipse' />

instead of a ", its ' to represent String attribute.
How would i modify your script now?

-Adi
# 7  
Old 11-20-2012
Ah, very good, thanks.

Have a go with this:
Code:
 awk '
    /property name=/ {
        gsub( ".*value=" Q, "" );
        gsub( Q ".*", "" );
        print;
    }
' Q="'" RS="[<>]"

Embedding single quotes inside of an awk programme contained inside of single quotes is tricky. Several ways of dealing with it; I think this is the easiest. It assigns the single quote to Q, and then appends it to the strings in the substitution commands where needed.
This User Gave Thanks to agama For This Post:
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. UNIX for Beginners Questions & Answers

Multiline html tag parse shell script

Hello, I want to parse the contents of a multiline html tag ex: <html> <body> <p>some other text</p> <div> <p class="margin-bottom-0"> text1 <br> text2 <br> <br> text3 </p> </div> </body> (15 Replies)
Discussion started by: SorcRR
15 Replies

2. Shell Programming and Scripting

Moving XML tag/contents after specific XML tag within same file

Hi Forum. I have an XML file with the following requirement to move the <AdditionalAccountHolders> tag and its content right after the <accountHolderName> tag within the same file but I'm not sure how to accomplish this through a Unix script. Any feedback will be greatly appreciated. ... (19 Replies)
Discussion started by: pchang
19 Replies

3. Shell Programming and Scripting

XML files with spaces in the tag name, parse & display?

Greetings all, I have an XML file that is being generated from my application, here is a sample of the first tag (That I am trying to remove and display in a list..) Example- <tag one= "data" data="1234" updateTime="1300"> <tag one= "data1" data="1234" updateTime="1300"> <tag... (5 Replies)
Discussion started by: jeffs42885
5 Replies

4. Shell Programming and Scripting

To search for a particular tag in xml and collate all similar tag values and display them count

I want to basically do the below thing. Suppose there is a tag called object1. I want to display an output for all similar tag values under heading of Object 1 and the count of the xmls. Please help File: <xml><object1>house</object1><object2>child</object2>... (9 Replies)
Discussion started by: srkmish
9 Replies

5. Shell Programming and Scripting

XML Parse between to tag with upper tag

Hi Guys Here is my Input : <?xml version="1.0" encoding="UTF-8"?> <xn:MeContext id="01736"> <xn:VsDataContainer id="01736"> <xn:attributes> <xn:vsDataType>vsDataMeContext</xn:vsDataType> ... (12 Replies)
Discussion started by: pareshkp
12 Replies

6. Shell Programming and Scripting

Using shell command need to parse multiple nested tag value of a XML file

I have this XML file - <gp> <mms>1110012</mms> <tg>988</tg> <mm>LongTime</mm> <lv> <lkid>StartEle=ONE, Desti = Motion</lkid> <kk>12</kk> </lv> <lv> <lkid>StartEle=ONE, Source = Velocity</lkid> <kk>2</kk> </lv> <lv> ... (3 Replies)
Discussion started by: NeedASolution
3 Replies

7. Shell Programming and Scripting

awk command to insert a tag in XML

Hi All, I need a help on inserting a XML tag. Actual input <var> <nam>abcd</nam> <a1>.</a1> </var> if tag <a1>.</a1> is getting missed in XML like below <var> <nam>abcd</nam> </var> i need to insert wherever it is missed after <nam> tag and before </var> tag. Could anyone... (3 Replies)
Discussion started by: mohanalakshmi
3 Replies

8. Emergency UNIX and Linux Support

Trying to parse a xml file for only one tag

I have a xml file in where I need to parse only a particular tag and print the output in the shell script. Here is the tag info in the xml file <dp:file> This is dp file output </dp:file> Output should be printed as This is dp file output. Please help.Thank you. (5 Replies)
Discussion started by: chandu123
5 Replies

9. Shell Programming and Scripting

Shell script (not Perl) to parse xml with awk

Hi, I have to make an script according to these: - I have couples of files like: xxxxxxxxxxxxx.csv xxxxxxxxxxxxx_desc.xml - every xml file has diferent fields, but keeps this format: ........ <defaultName>2011-02-25T16:43:43.582Z</defaultName> ........... (2 Replies)
Discussion started by: Pluff
2 Replies

10. Shell Programming and Scripting

Searching XML tag in a script

Hey, I need to parse the following XML to just grab the Customer ID. Is there any RegEx that can achieve this ? So in this example, the script just return 0000109654, as the output. Even if it involves awk, sed please let me know. ************ <?xml version="1.0" encoding="UTF-8"?>... (1 Reply)
Discussion started by: abhandari
1 Replies
Login or Register to Ask a Question

Featured Tech Videos