Please write a shell script called "checkfile" that checks a file provided from the command line by the user to determine whether it is a regular file. If it is a regular file, your script should go further to determine whether it is readable and executable? Your script should display the information on each checking step it makes, such as "The file is a regular file" or "The file is a readable file," etc.

While inserting images, the picture command is usually used to insert photos from a digital camera, and the clip art command is usually used to a.edit the sizes and other characteristics of photos that have been inserted. b.take a screenshot of an image and copy it to the clipboard for pasting. c.search for drawings or other images from a library of prepared pictures. d.make illustrations using lines and shapes that are easy to manipulate.