test.sh

#!/usr/bin/env bash

firstline=$(head -n 1 source/changelog.md) 
read -a splitfirstline <<< $firstline
version=${splitfirstline[1]}
echo "This is version: $version"
echo "$firstline"
read -p 'Do you want to continue? (y/n)' answer

answer="${answer,,}"

if [[ $answer == "y" || $answer == "yes" ]];
then
  echo "ok"
else
  echo "maybe lata"
  exit
fi

for filename in source/*
do
  echo $filename

if [[ $filename == "source/secret.txt" || $filename == "source/this is source" ]];
then
  echo "Not copying" $filename
else
  echo "Copying" $filename
  cp $filename build/.
fi
done

(
cd build/ || exit
firstline=$(head -n 1 changelog.md) 
read -a splitfirstline <<< $firstline
version=${splitfirstline[1]}
echo "your on version: $version"
ls
) # () anotate opening of a subshell so we dont have to actually leave our file and directory