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awk - why this is not working? trying next word!

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# 1  
Old 05-13-2014
awk - why this is not working? trying next word!
Hi Experts,
Can you please advise , why I am not able to make it work, or why this is not working: I spent quite a lot of time on this figuring out , but not working,




file :
Code:
This is a test file thanks for your reply
This is another file again 
Have a nice day this is a small file thanks again.

I am trying:
Code:
cat file|awk '{for(i=i;i<=NF;i++)if($i~"file") print $(i+1)}'


Output:
Code:
cat file|awk '{for(i=i;i<=NF;i++)if($i~"file") print $(i+1)}'
awk: Field $() is not correct.
 The input line number is 1.
 The source line number is 1.


The output should be :
Code:
thanks 
again
thanks

Last edited by rveri; 05-13-2014 at 08:41 PM..
# 2  
Old 05-13-2014
i in $i is undefined because you incorrectly initialize it to itself.

Regards,
Alister
# 3  
Old 05-13-2014
So how do I get the above output, do I have to store in an array first. Thank you ..
# 4  
Old 05-14-2014
i=1 not i=i
Code:
< file awk '{for(i=1;i<NF;i++) if($i~"file") print $(i+1)}'

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