Search line by line in file for a string

Question

I need to search line by line to ensure a word appears on every line of a .text file. I am currently working on a batch script so it would be ideal if batch has the capabilities to do this. Otherwise, what are my options?

Answer 1

echo Lines that have NOT the search word:
findstr /N /V /C:"theWord" theFile.txt

Answer 2

为什么不在.txt文件上使用c ++，然后将文件转换为批处理文件。