how to find and read out parms in an xml file

mcandy_123 · 01-14-2008, 03:27 PM

hello !
I have for example following xml file content: <blabla>..<blabla/><blabla>..<blabla/><parm1>10</parm1><parm2>20<parm2/><blabla>..<blabla/><blabla>..<blabla/>
know I would like using grep or find or awk catch the parm 2 (20) by finding the value of parm 1 (10) first and displaying (print) parm 2 secondly.

Thanks in advance
br,
mcandy

Tinkster · 01-14-2008, 05:20 PM

Hi,

And welcome to LQ!

I'm not sure what the requirement is; is the name of the tag relevant at all,
or are you just looking for the first piece of VALUE after a value of 10?

[edit]
If my trivial assumption above was correct this simple sed below would do:

Code:

echo "<blabla>..<blabla/><blabla>..<blabla/><parm1>10</parm1><parm2>20<parm2/><blabla>..<blabla/><blabla>..<blabla/>"| sed -r 's/.+10<.+>([0-9]+).+/\1/g'
20

[/edit]

Cheers,
Tink

mcandy_123 · 01-15-2008, 08:17 AM

Quote:

Originally Posted by Tinkster

Hi,

And welcome to LQ!

I'm not sure what the requirement is; is the name of the tag relevant at all,
or are you just looking for the first piece of VALUE after a value of 10?

[edit]
If my trivial assumption above was correct this simple sed below would do:

Code:

echo "<blabla>..<blabla/><blabla>..<blabla/><parm1>10</parm1><parm2>20<parm2/><blabla>..<blabla/><blabla>..<blabla/>"| sed -r 's/.+10<.+>([0-9]+).+/\1/g'
20

[/edit]

Cheers,
Tink

Hi, Tink !
First of all, thanks for the reply !
my string looks like following:
long part befor in this string...<dscpService>0</dscpService><Enable>1</Enable>...long part afterwards
So, I should find first the tag <dscpService>0</dscpService> , which is uniq in this xml file and direct afterwards comes the Enable Flag which could be 0=off or 1=on. So I need to read the Enable flag or to define it in a parm.

hope thats a better description,
br,
mcandy