Linux ed command and linuxed command

Linux ed command and linuxed command
$ Ed <-activate ed commandA <-tell ed that I want to edit the new fileMy name is Titan. <-enter the content of the first line.And I love Perl very much. <-enter the second line of content. <-Return the command line status of edI <-tell ed that I want to insert content before the last lineI am 24. <-insert "I am 24." between "My name is Titan." And "And I love Perl very much .". <-Return the command line status of edC <-tell ed that I want to replace the last input lineI am 24 years old. <-Replace "I am 24." with "I am 24 years old." (Note: The last input is replaced here). <-Return the command line status of edW readme. text <-name the file "readme. text" and save it. (Note: If you are editing an existing file, you only need to enter w)Q <-exit the ed editor completely