MATLAB: How to save command window output to a text file

MATLAB

How do we save command window output to a text file? The customer does not want to use fprintf function to write data to text file.

Best Answer

We can use the "diary" function: https://www.mathworks.com/help/matlab/ref/diary.html?s_tid=doc_ta

It will create a log file that contains keyboard input and result output. We could also customize the name for the output file.

Please note that the content in the command window might not be written into the log file right away. We can force the writing by toggling the switch for "diary" function. Example code:

diary on
a = 2   % Output of this line might not be written to file right away...
diary off  % until this command is executed
diary on  % You could put diary 'on' if you want more record of the command window
a = 3
diary off

Related Solutions

MATLAB: How to programatically print out the contents of the MATLAB Command Window

This functionality can be emulated by using the "diary" and "system" commands. First, use "diary" to enable Command Window logging and save it in a file:

>> diary('commandLog')
>> diary on

This creates a file named 'commandLog' in MATLAB's current folder. Now, execute the commands of interest. Be sure to not suppress the output of variables with semicolons if you would like them to be written to the file. Once you are ready to print the file, execute the following commands to turn off diary logging, print the text file through Notepad, and then delete the file:

>> diary off
>> system('notepad /p commandLog')
>> delete('commandLog')

It is recommended that the file be deleted every time this workaround is used since "diary" appends Command Window text to the file if it already exists.

MATLAB: How to save the command window output

Use the "diary" function to save the Command Window text to a file. The documentation for this function can be found at the following location:

https://www.mathworks.com/help/matlab/ref/diary.html

Best Answer

Related Solutions

MATLAB: How to programatically print out the contents of the MATLAB Command Window

MATLAB: How to save the command window output

Related Question