Question 4: Compile and test the program below. Then, add what is needed to make it capable to run commands with arguments (A line will contain a command name and its possible arguments). 

#include #include #include #include #include #include #include int readLine(int, char *, int); int main(int argc, char *argv[]){ // To execute int status=0, n; // commands with no arguments char line[255]; char prompt [30]="Enter your command here>"; while(1) { write(STDIN_FILENO, prompt, 25); n=readLine(STDIN_FILENO, line, 255); if( n #include #include #include #include #include #include int readLine(int, char *, int); int main(int argc, char *argv[]){ // To execute int status=0, n; // commands with no arguments char line[255]; char prompt [30]="Enter your command here>"; while(1) { write(STDIN_FILENO, prompt, 25); n=readLine(STDIN_FILENO, line, 255); if( n