CODEWITHSUNDEEP
shellawk
ela
ela

Reputation: 11

How to split data with awk

I would like to use awk to work on some files. I have a file like this:

input: 

a     2   16  
b    17   25   
c    26   32   
d    33   51

and what I want is to split all rows to enumerate the range between column 2 and column 3, incrementing the numbers by 2. For example:

a  2  4  6  8 10 12 14 16  
b  17 19 21 23 25  
c  26 28 30 32  
d  33 35 37 39 41 43 45 47 49 51

Upvotes: 1

Views: 78

Answers (1)

user448810
user448810

Reputation: 17851

$ awk ' { printf("%-3s", $1)
>         for (i=$2; i<=$3; i+=2)
>             printf ("%-3d", i)
>         printf("\n") } ' <<EOF
> a   2  16
> b   17 25
> c   26 32
> d   33 51
> EOF
a  2  4  6  8  10 12 14 16
b  17 19 21 23 25
c  26 28 30 32
d  33 35 37 39 41 43 45 47 49 51

Upvotes: 4

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