#!/bin/bashs='1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4'p='1 2 3 4'echo "$s"|sed "s/$p */&\n/g"
Standard input is empty
1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4
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