(Solved) : One First Parts Unix Operating System Developed August 1969 Ed Line Editor Described User Q27365697 . . . .

One of the first parts of the Unix operating system, developedin August 1969, was ed a line editor. Some have describedit as “the most user-hostile editor ever created” as ed is reallydifficult to use!

Here, we would like to develop a very simple line editor thatonly acts on one initial line of text. The user can then eitherdelete a substring from that line, or insert a string into it.

Write program line_editor.c that implements a line editorsupporting deletion and insertion, as illustrated in the followingexample:

_____________________________________________________________________________________________________________________________

$ ./line_editorEnter the source string:Hello worldSource string is: ‘Hello world’Enter [Dd] (delete), [Ii] (insert) or [Qq] (quit):iEnter string