Write a shell script (script2.sh) to traverse the directory structure from current directory (recursively, that is, to traverse left-to-right depth-first manner) and (1) to print the current path (with pwd command using system("pwd") call) and (2) to print any file/directory entries (with ls command, using system("ls") call). Your program should print the result of each pwd from current-directory path name, then to the path name of dir1, and then dir4 and so on.

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