Log Command Window text to file
diary toggles logging on and off. When logging in on,
MATLAB® captures entered commands, keyboard input, and text output from the
Command Window. It saves the resulting log to the current folder as an ASCII text
To see whether logging is on, type
get(0,'Diary'). MATLAB returns either
diary saves the resulting log
filename. If the file already exists, MATLAB appends the text to the end of the file. To see the name of the
diary file, type
diary off disables logging.
diary on enables logging using the current
diary file name.
Create a diary file and record several statements and their output.
Enable logging and save the resulting log to
Perform a calculation, and create and display a matrix of ones in the Command Window.
a = 1; b = sin(a); x = ones(4)
x = 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Disable logging and display the log file in the Command Window.
diary off type myDiaryFile
a = 1; b = sin(a); x = ones(4) x = 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 diary off
filename— Log file name
Log file name, specified as a character vector or string.
filename can include a full path or a path relative
to the current folder. Otherwise, MATLAB saves
filename in the current
Because the output of
diary is plain text, the log file does not
exactly mirror what you see on screen:
The diary file does not include graphics (figure windows).
The diary file does not preserve syntax highlighting and font preferences.
The diary file shows hidden components in the Command Window, such as
hyperlink information generated with
matlab:, in plain text.
For example, if you enter this statement in the Command Window
str = sprintf('%s%s', ... '<a href="matlab:magic(4)">', ... 'Generate magic square</a>'); disp(str)
However, the diary file, when viewed in a text editor, shows
str = sprintf('%s%s', ... '<a href="matlab:magic(4)">', ... 'Generate magic square</a>'); disp(str) <a href="matlab:magic(4)">Generate magic square</a>
To view the contents of the diary file with syntax highlighting, use the