CODEWITHSUNDEEP
awk
T.ALC
T.ALC

Reputation: 1

Multiply row by column with awk

Good afternoon, I'm trying to do the following multiplication with awk:

0    1       2       3
2 A21*A12 A21*A13 A21*A14
5 A31*A12 A31*A13 A31*A14
4 A41*A12 A41*A13 A41*A14

Input:

0 1 2 3
2
1
3

Expected output:

0 1 2 3
2 2 4 6
1 1 2 3
3 3 6 9

Is it possible to do this using awk?

Upvotes: 0

Views: 77

Answers (1)

glenn jackman
glenn jackman

Reputation: 247012

awk '
    NR == 1 {n = split($0, a)}
    NR > 1  {for (i=2; i<=n; i++) $i = a[i] * $1}
    {print}
' input

0 1 2 3
2 2 4 6
1 1 2 3
3 3 6 9

Upvotes: 3

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