Record a macro that will delete everything after matching character and repeat it N-times.
In this example we’re going to use
= as the matching character.
qa- to start recording and save it under ‘a’ buffer
f=- find ‘=’ character
D- Delete everything to the EOL
⏎- press ‘enter’ to go to the beginning of next line
q- to stop recording the macro then to repeat the macro N-times, i.e. repeat it 5 times:
5- the number of times you’d like to repeat the macro
@a- play macro recorded under