Write a program to implement following Unix commands (any two options) 1)mv <source file> <target file> It moves source file into target file 2) cp <source file> <target file> IT copies source file into target file 3) rm <filename> It deletes the file

#include<stdio.h>
#include<stdlib.h>
#include<conio.h>
char *buff,*t1,*t2,*t3,ch;
FILE *fp1,*fp2;
main()
{
   int n;
   clrscr();
   while(1)
   {
printf("myshell$");
fflush(stdin);
t1=(char *)malloc(80);
t2=(char *)malloc(80);
t3=(char *)malloc(80);

buff=(char *)malloc(80);
fgets(buff,80,stdin);
n=sscanf(buff,"%s %s %s",t1,t2,t3);
if(strcmp(t1,"exit")==0)
exit(0);

if(strcmp(t1,"mv")==0)
{
  if(rename(t2,t3)==-1)
   perror(" ");
  else
  {
   rename(t2,t3);
   printf("\n%s file is moved successfully into %s file",t2,t3);
  }
}
else if(strcmp(t1,"rm")==0)
{
 if(remove(t2)==-1)
   perror(" ");
 else
  {
   remove(t2);
   printf("\n%s File is deleted",t2);
  }
}

else if(strcmp(t1,"cp")==0)
{
 fp1=fopen(t2,"r");
 fp2=fopen(t3,"w");

 if(fp1==NULL)
      printf("\nError in opening file %s",t2);
 while(1)
  {
    ch=fgetc(fp1);
    if(ch==EOF)
break;
    fputc(ch,fp2);
  }
  fcloseall();
}

   }
}