How to compare similar lines of two text files

hello,I have two text files including 100 lines.I want to compare same lines in two texts. for example line 1 from text 1 with line 1 in text 2 and line 2 in text 1 with line 2 in text 2 and ... I wrote this code but it compares all lines in text 1 with all lines in text 2.can any one help me to write correct codes?thanks.

    fidi1 = fopen('part11.txt');
tt1 = textscan(fidi1,'%s', 'delimiter', '\n');
fclose(fidi1);
fidi2 = fopen('part22.txt');
tt2 = textscan(fidi2,'%s', 'delimiter', '\n');
fclose(fidi2);
tt1s = char(tt1{:});
tt2s = char(tt2{:});
[C,ia,ib] = intersect(tt1s,tt2s,'rows')%Find set intersection of two vectors.
common_parts = size(C,1);

[Walter Roberson]

What do you want to have happen when a line is considered to match or to not match?

Is there a need to watch out for deletions, where a line might simply not be present, so you might end up (for example) matching line 8 of one with line 7 of the other?

[Muhammad Usman Saleem]

Please provide explaination on Comparision meaning?

[Fateme Jalali]

I want to compare similar lines of data for equality. line 1 of text 1 with line 1 of text 2.

[Muhammad Usman Saleem]

see Stalin Samuel answer

[Walter Roberson]

Fateme Jalali you did not answer my questions about what you want to do if they match or if they do not match, and about whether you need to worry about missing lines.

Answer 1

[Stalin Samuel]

Compare two text files