Replace one substring for another string in shell script

Question

I have \"I love Suzi and Marry\" and I want to change \"Suzi\" to \"Sara\".

#!/bin/bash
firstString=\"I love Suzi and Marry\"
secondString=\"Sara\"
# do some         


        

Answer 1

echo [string] | sed "s/[original]/[target]/g"

• "s" means "substitute"
• "g" means "global, all matching occurrences"