In which file dora save and how we can see that in linux redhat?

locate Dora.* | morewhich will locate all the files starting with Dora name

grep --color -R "dora" /  for searching DORA 

gedit is a graphical text editor. It can open, edit, and save plain text files. You can also cut and paste text to and from other graphical desktop applications, create new text files, and print files. gedit has a clear and understandable interface that uses tabs so that you can open more than one file at the same time without opening more than one gedit window.

To start gedit, click Main Menu => Accessories => Text Editor. You can also start gedit by typing gedit at a shell prompt.

Once gedit is running, you are presented with a blank editing area. You can begin using gedit immediately or click the Open button to locate the plain text file you want to edit. The file loads into the main editing area. You can navigate the text file by clicking and holding the scroll bar on the right edge of the window and moving your mouse cursor up and down; or, use the arrow keys to navigate through the text file line-by-line. Press the [Page Up] and [Page Down] keys to advance the document a page at a time.

Once you have modified or written your text file, you can save it by pressing the Save button in the toolbar, or by choosing File => Save from the file menus. If you are writing a new text file, a pop-up window prompts you to name the file and save it in the directory of your choice. If you are editing an existing file, then any changes you make automatically appears in the file the next time you open it. You can also choose File => Save As... to save an existing file under a new name or in a different location, which is convenient if, for example, you are editing a configuration file and you want to test your changes without losing your original configuration.

For more information about gedit, choose Help => Contents from the file menus to access the gedit manual.

dora can be search using grep --color -R "dora" /  command

As per my experience the best way to do this is

grep --color -R "dora" /

we can find dora by using below command in redhat

grep --color -R "dora" /