How to find text in a file?

Question

Text Processing Automation

There is a file in it more than 7,000 lines
How to perform a search in the list
That is, from the beginning it searches one phrase after the machine automatically follows the next, and so all 64 phrases, if it finds something, write it to a separate file

Answer 1

A very complex and philosophical question.
First of all, you need to understand what programming language you are going to use to do the simplest line-by-line reading of a file and search by line occurrence.
In c#, for example, you can do something like this:

using (StreamReader streamReader = new StreamReader(this.MyPath))
{
     while (streamReader.Peek() > 0)
     {
          string line = streamReader.ReadLine();

          if (line.Contains(Resources.Constants.SpecificString)
          {
               // Do some action with the string.
          }
     }
}

The tag "Search technologies" is inappropriate here as never before.