If you accidentally hit cmake before "cd build" and you really do not know how to "mass" checkout folders and files this will help a lot.

deleteFilesFromInput.sh

#!/bin/bash
# source: https://stackoverflow.com/questions/10929453/read-a-file-line-by-line-assigning-the-value-to-a-variable

while IFS='' read -r line || [[ -n "$line" ]]; do
	rm -rf $line
done < "$1"