how to save current date and time to a text file

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Muhammad Haziq
Muhammad Haziq 2018-11-28
评论： Rik 2018-11-28
Hi,
I am trying to save current date and time in .txt file through MATLAB fopen fclose command but it gıves error. can anybody help me here is my syntax.
close all
clear all
time = datestr(clock,'YYYY/mm/dd HH:MM:SS:FFF');
fileID = fopen('trialt.txt');
fprintf(fileID,'%23s\n','time');
fclose('trial');

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Muhammad Haziq
Muhammad Haziq 2018-11-28
Hi,
Thank you for guiding me I resolved this issue.
  1 个评论
Rik
Rik 2018-11-28
Glad to be of help.
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更多回答（1 个）

Rik
Rik 2018-11-28
编辑：Rik 2018-11-28
There are three main issues here: you are printing the literal string 'time' to the file, instead of the contents of the time variable. The second issue is that you should use the fileID as input to fclose. The third issue is that you didn't specify the write permission in fopen, so it didn't generate a valid identifier.
Also, you don't need close all here, nor clear all. The later should never be used anyway. In a debugging context you can consider using clearvars instead.
The code below should do what you need.
close all;clearvars%neither is needed here
time = datestr(clock,'YYYY/mm/dd HH:MM:SS:FFF');
fileID = fopen('trialt.txt','wt');
fprintf(fileID,'%23s\n',time);
fclose(fileID);

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