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  1. #!/bin/bash
  2. s='A B C
  3. x 1 t
  4. y 2 u
  5. z 3 v'
  6. awk 'BEGIN{FS=OFS="\t"} {$2+=5}1' <<< "$s"
Success #stdin #stdout 0s 4596KB
stdin
Standard input is empty
stdout
A	5	C
x	6	t
y	7	u
z	8	v