How to delete unwanted lines from text file through batch file?

Answer 1

Step #1

opens the text file

reads the first record

Step #2

open an output file temp_out.dat

Step #4

while not end of file

Step #4a

shows the record to the user by displaying it on the screen

Step #4b

as the use if he or she wants the record

Step #4c

if yes, writes the record to temp_out.dat

Step #4d

reads the next record

end while

Step #5

closes the files

deletes the text file

Step $6

renames temp_out.dat to the same name as the original input text file