Here’s how to grep for something and show only the matching part:
# echo '${these}${are}${vars}' | grep -o -E '\${.*?}'
${these}
${are}
${vars}Developer from somewhere
Here’s how to grep for something and show only the matching part:
# echo '${these}${are}${vars}' | grep -o -E '\${.*?}'
${these}
${are}
${vars}