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why doesnt it work?

 
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# 1  
Old 12-03-2011
why doesnt it work?
I am trying to print out two fields in a file using awk. So, I have got
Code:
awk  -F '\t'  'NF = 2 {print $1  $2 "]"}' two.txt

in a script called what.awk
When i run this version like this - ./what.awk then it runs however I want to run the program like this
Code:
awk -f what.awk two.txt.

When I try running it this way it doesnt work- it gives me errors, what do I do?
Last edited by The undertaker; 12-04-2011 at 05:32 PM..
# 2  
Old 12-03-2011
What exactly is in "what.awk"?
# 3  
Old 12-03-2011
This NF = 2 should be this NF == 2.

"It gives me errors" is no help. What errors?
# 4  
Old 12-03-2011
Thank you for helping me with that question
Last edited by The undertaker; 12-04-2011 at 05:31 PM..
# 5  
Old 12-03-2011
The contents of what.awk, I imagine, should be:

Code:
NF == 2 {print $1, "[LABEL=" $2 "]"}

Code:
$ cat what.awk
NF == 2 {print $1, "[LABEL=" $2 "]"}

$ cat what.txt
a b
c d e f
g h

$ awk -f what.awk what.txt
a [LABEL=b]
g [LABEL=h]

# 6  
Old 12-03-2011
Ok thanks. It worked when I used only one = sign though.
# 7  
Old 12-03-2011
= is wrong. It will assign 2 to NF, not test if the value of NF is 2.
 
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