Hi Bakunin,

I was using this command and was getting expected output. but then for few lines i found html tags contains some prefix as well.

Code:

 grep 'pName="vin'  temp.txt | sed -n 's:.*<mis>\(.*\)</mis>.*<seg>\(.*\)</seg>.*:\1\,\2:p'

So the prefix in few lines were different((like <s:mis> or <t:mis) ) but the parameter to grep is always same (mis or seg). I was trying to make the prefix optional using asterisk in command like this

Code:

 ( grep 'pName="vin'  temp.txt | sed -n 's:.*<*mis>\(.*\)</*mis>.*<*seg>\(.*\)</*seg>.*:\1\,\2:p' )

but it seems asterisk cant be used inside html tags to make it optional or i am not aware of.

--- Post updated at 03:47 AM ---

Thanks RudiC....This works perfectly but if sequence changes or any new element is there in lines that also gets printed. I was thinking of greping the specific parameter values (like mis, seg values) and for this i was using below command

Code:

grep 'pName="vin'  temp.txt | sed -n 's:.*<mis>\(.*\)</mis>.*<seg>\(.*\)</seg>.*:\1\,\2:p'

To consider prefixes as well before mis or seg i was trying asterisk to make it optional but seems the way i am using is not correct.

Code:

grep 'pName="vin'  temp.txt | sed -n 's:.*<*mis>\(.*\)</*mis>.*<*seg>\(.*\)</*seg>.*:\1\,\2:p'

Sequence or prefix may change this way.

Code:

<l:ev dateTime="2019-06-14 08:30" pName="vin"> <mis>11111111</mis><seg>Pit</seg> </l:ev>
<l:ev dateTime="2019-06-14 09:30" pName="vin"> <val:xyz>4444</val:xyz><val:seg>sit</val:seg><val:mis>222</val:mis>< </l:ev>
<l:ev dateTime="2019-06-14 09:30" pName="vin"> <n:mis>222</n:mis><n:seg>sit</n:seg> </l:ev>