Write a shell script, which will receive any number of filenames as arguments .The shell script should check whether such files already exist. If they do, then it should be reported. If these files do not exist then check if a subdirectory called mydir exists in the current directory .If it doesn’t exist then it should be created and in it files supplied as arguments should get created .If mydir already exists then it should be reported along with the number of files that are currently present in myir.