Simulation of Unix Commands 2 SIMULATION OF UNIX COMMANDS – cat command // 2. cat command #include<fcntl.h> #include<sys/stat.h> #define BUFSIZE 1 int main(int argc, char **argv) { int fd1; int n; char buf; fd1=open(argv[1],O_RDONLY); while((n=read(fd1,&buf,1))>0) printf(“%c”,buf); return (0); }