how to compare two files line by line?
4 vues (au cours des 30 derniers jours)
Afficher commentaires plus anciens
I want to compare two files line by line and count how many lines they have in common , I tried the code below , but it doesn't work , somehow MATLAB stops working , ">>" just disappear
f = fopen('nv.txt','at');
fid = fopen('test.txt');
k = 0;
while ~feof(fid)
s1 = fgetl(fid);
if ~isempty(s1)
while ~feof(f)
s2 = fgetl(f);
if ~isempty(s2)
if(strcmp(s1,s2))
k = k+1;
end
end
end
end
end
fclose(fid);
fclose(f);
disp(k);
1 commentaire
Image Analyst
le 12 Mar 2016
If the second line is missing in one of the files, (and the rest of the lines are just moved up one) then do you say that from line 2 on they are all different?
What if the lines are all there but in some different order?
Réponse acceptée
MHN
le 12 Mar 2016
Modifié(e) : MHN
le 12 Mar 2016
f = fopen('nv.txt');
fid = fopen('test.txt');
k = 0;
while ~feof(fid)
s1 = fgetl(fid);
frewind(f) % start from the first line of the second file
if ~isempty(s1)
while ~feof(f)
s2 = fgetl(f);
if ~isempty(s2)
if(strcmp(s1,s2))
k = k+1;
end
end
end
end
end
fclose(fid);
fclose(f);
disp(k);
3 commentaires
MHN
le 12 Mar 2016
Please use the "accepted answer" button. Are you sure? I run the program line by line and it compares every lines include the first one.
Plus de réponses (2)
r r
le 11 Mai 2021
I have two files with similar data and I want to extract them into a file, and I also want to print the same line for the same data in the two files
Please help me
F1 = fopen('E.txt');
T1 = textscan(F1,'%s', 'delimiter', '\n');
fclose(F1);
F2 = fopen('G.txt');
tt2 = textscan(F2,'%s', 'delimiter', '\n');
fclose(F2);
T1s = char(T1{:});
T2s = char(T2{:});
[C,ix,ic] = intersect(T1s,T2s,'rows')
%%%%%%%%%%%%%%%%%%out Fiel :::
dlmwrite('R.txt',C,'%.6f');
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