Please I want to know how to delete the first line of a file text with matlab ?

Please help me ! thank you

Answer 1

[Walter Roberson]

One way is to fopen the file for reading, fopen a different file for writing, fgetl the first line of the input and throw it away. Now fread the rest of the input and fwrite to the output. fclose both. Rename the output file to the input name.

There are other ways, but there is no direct way to delete a line: they all come down to copying input to output leaving out the part you do not want.

[Imen Mani]

Please can you give me a code because I did not understand you exactly ! it's urgent.Thank you !

[Walter Roberson]

http://www.mathworks.com/matlabcentral/answers/29922-why-your-question-is-not-urgent-or-an-emergency

[Walter Roberson]

fid_in = fopen('ExistingFile.txt', 'r');
fid_out = fopen('NewFile.txt', 'w');
fgetl(fid_in);
rest_of_file = fread(fid_in,'*uint8');
fwrite(fid_out, rest_of_file);
fclose(fid_in);
fclose(fid_out);

[Imen Mani]

Thank you a lot ! Please after the deletion of the first line I want to move contained by file 'nexFile.txt' in the file ' ExistingFile.txt '! Thank you for your help !

[Walter Roberson]

movefile('NewFile.txt', 'ExistingFile.txt');

[ubaid haroon]

Very neat. I was able to use this piece of code