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@Scutinizer Thanks it works..

@RudiC if we have multiple matches then I need a new line character before another P1 block is printed. The script doesn't takes care of it.

Thanks Rudic. It works. Can you explain a little about your awk line. Does it work block by block or line by line ?
Sorry for asking such a basic question but I am very new to awk.

I need to develop a script where I will take two date arguments as parameter date1 and date2 which will in format YYYYMM.

Below is the input file say sample.txt.

sample.txt will have certain...

Sorry for late reply. Was very busy.

This solves my Problem. Thanks :D

Do you have idea about how can I write a multi-line regular expression ?

like say for example,

17,9:10/8013765024...

@akshay

How can I redirect value of say only one variable s1 into a file say s1.txt.

printf "'%d',",s1 >> s1.txt

But I am getting an error Illegal Statement.

I have used backticks but no...

@aia: I agree with you. Actually I am working on something and the part I needed help is just this reporting part. My whole project is mostly in basic shell and AWK is like a black area for me.
...

[QUOTE=Akshay Hegde;302905096]awk -F'/' '

# Function to validate number
function isnum(x){return(x==x+0)}

/P1/,/P2/{
# Found start increment i reset variables go to next...

Actually, its my mistake I wasn't clear. My example quoted not correct.
Here is the correct input.

P1
10,9:11/18013013582
,10:1
,167:0
,487:5/E.164
11,9:15/310410532169026
,10:60
,167:0...

@Akshay, please see my previous post.

Its almost close to what I want, only I think you have not include the condition to print "NULL" in case it doesn't find specified value.

Hello Akshay,

Thanks for quick response.
Your awk works fine but there are some tweaks that need to be done in order to fit my scenario.

First of all, you awk is reading line by line and...

I have a file say "SAMPLE.txt" with following content,

P1
10,9:6/123456
P2
blah blah
P1
10,9:5/98765
P2
blah
blah
P1
blah blah
P2

I...