MATLAB: Text file modification (remove blank line)

Question

I've a text file like this:

 [TITLE]
-> blank line  (I want remove) <-
[JUNCTIONS]
;ID                Elev          Demand        Pattern         
 1                 60            4                               ;
 2                 40            4                               ;
 3                 20            2                               ;
 4                 40            0                               ;
-> blank line  (I want remove) <-
[RESERVOIRS]
;ID                Head          Pattern         
 5                 100                             ;
-> blank line  (I want remove) <-
[TANKS]
;ID                Elevation     InitLevel     MinLevel      MaxLevel      Diameter      MinVol        
-> blank line  (I want remove) <-
[PIPES]
;ID                Node1             Node2             Length        Diameter      Roughness

I have to remove blank line. Can someone help me?

Answer 1

filecontent = fileread('YourFile.txt');
newcontent = regexprep(filecontent, '\n\n+', '\n');
fid = fopen('NewFile.txt', 'w');
fwrite(fid, newcontent);
fclose(fid);