Shell script - search and replace text in multiple files using a list of strings

Question

I have a file \"changesDictionary.txt\" containing (a variable number of) pairs of key-value strings.

e.g.

\"textToSearchFor\" = \"theReplacementText\"

Answer 1

#!/bin/bash
f="changesDictionary.tx"
find /path -type f -name "*.txt" | while read FILE 
do
    awk 'BEGIN{ FS="=" }
    FNR==NR{ s[$1]=$2;  next }
    {
       for(i in s){      
        if( $0 ~ i ){ gsub(i,s[i]) }
       }
       print $0
    }' $f $FILE  > temp
    mv temp $FILE
done