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# 8  
Old 09-24-2011
Thank you so much Shamrock. Your idea is really simple and easy to understand. And the usage of function gsub is also great, I was not aware of it before.

But, there is a small problem in the code. The output I got is :
Code:
 
gp1 : None
gp2 : None
gp3 : grp1 grp4

and I couldn't figure out why? Please help!
# 9  
Old 09-24-2011
What platform are you on...
# 10  
Old 09-25-2011
I am on Debian GNU/Linux 5.0.8 (lenny). What platform are you using?

---------- Post updated at 03:53 PM ---------- Previous update was at 07:52 AM ----------

I observed a strange change as when I moved the first line to the end,
Code:
 
<File1> 
gp2 : syt2 kgk iti op2 
gp3 : ppy yt5 itt sky utw yry
gp1 : xyz xys3 syt2 ssx itt kty

it worked perfect and gave the required output. But, I didn't understand Why?
Any clues?
# 11  
Old 09-25-2011
Quote:
Originally Posted by mira
I am on Debian GNU/Linux 5.0.8 (lenny). What platform are you using?
It gives correct output on aix/hpux but when i ran it on redhat it didnt which is strange...i will dig into it and see why its happening...perhaps a bug in gnu's awk.

---------- Post updated at 11:31 AM ---------- Previous update was at 11:06 AM ----------

Quote:
Originally Posted by mira
I observed a strange change as when I moved the first line to the end,
Code:
 
<File1> 
gp2 : syt2 kgk iti op2 
gp3 : ppy yt5 itt sky utw yry
gp1 : xyz xys3 syt2 ssx itt kty

it worked perfect and gave the required output. But, I didn't understand Why?
Any clues?
It seems related to the assignment of the field separator FS as it gives correct output on rhel if FS is assigned outside the main block...
Code:
awk -F" : " '{
   if (FILENAME == "file1") x[$1] = $2
   if (FILENAME == "file2") y[$1] = $2
} END {
   for (i in x) {
      for (j in y) {
         n = split(y[j], a, " ")
         for (p = 1; p <= n; p++)
            s += gsub(a[p], a[p], x[i])
         if (n == s) z[i] = z[i] ? z[i]" "j : i FS j
         s = 0
      }
      if (!z[i]) z[i] = i" : None"
   }
   for (i in z) print z[i]
}' file1 file2

So does making this change work on your debian box without changing the order of lines in file1...
These 2 Users Gave Thanks to shamrock For This Post:
A-V mira
# 12  
Old 09-25-2011
Yes, its working perfect now Smilie Thanks a lot!
Awk programming is great for file processing and simpler than other languages but the versions and flavours cause trouble sometimes and it becomes hard to find out why? but Thanks again for your help.
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