Deleting Rows in Text File and Assigning them to a New Text

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tinkyminky93
tinkyminky93 on 8 Jun 2022
Edited: Rik on 8 Jun 2022
Hello,
I want to find the rows which contain "temp" word in my text file, then, I want to delete these rows. After that, what I want to do is, assigning the rest of the rows which are not deleted to a new text file or variable. How can I do it? Thank you.

Accepted Answer

Rik
Rik on 8 Jun 2022
Edited: Rik on 8 Jun 2022
Read the text file with readlines (or my readfile function).
Then you can use contains to determine which line contains the text 'temp'. The code below can then be used to write the lines with and without this text.
fprintf(fid1,'%s\n',str{L});
fprintf(fid2,'%s\n',str{~L});
Edit:
To give a more complete code:
filename1='original_file.txt';
filename2='temp_file.txt';
str=cellstr(readlines(filename1));
L=contains(str,'temp');
fid1=fopen(filename1,'w');
fid2=fopen(filename2,'w');
fprintf(fid1,'%s\n',str{L});
fprintf(fid2,'%s\n',str{~L});
fclose(fid1);fclose(fid2);
  3 Comments
Rik
Rik on 8 Jun 2022
You need to open the orignal file and the new file with fopen to generate file IDs.
Since you apparently stored the text in a variable named text, you will have to use that in the fprintf calls as well.

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