Linux shell

#include
#include

int main(int argc,char** argv)
{
char deneme[100],ags[100][100],*args[100],*env={NULL},asd[100]="/bin/";
int j,i,a=0,b=0,pid,ret,status,childpid,x;

while(1){
for(i=0;i<=100;i++)
{
  args[i]=NULL;
  for(j=0;j<=100;j++)
   {
    ags[i][j]=NULL;
   }
}
printf("sevgili shell 1.0 : ");
gets(deneme);
for(i=0;i{
  if(deneme[i]!=" ")
   {
    ags[a][b]=deneme[i];
//     printf("ags[%d]:%s\n",a,ags[a]);
    b++;
   }
  else
   {
    a++;
    b=0;
   }
  }
//   printf("farki\n");

for(i=0;i<=a;i++)
  {
//    printf("ags[%d]:%s\n",i,ags[i]);
   args[i]=ags[i];
//    printf("args[%d]:%s\n",i,args[i]);
   
  }
a++;
args[a]=NULL;
// printf("args[%d]:%s\n",a,args[a]);  
strcpy(asd,"/bin/");
strcat(asd,ags[0]);
// printf("asd:%s\n",asd);
args[0]=asd;
// printf("args[0]:%s\n",args[0]);
a=0;
b=0;

pid=fork();
if(pid==0)
{   
   printf("\n\n\n");
   ret=execve(args[0],args,env);
   if(ret<0)
    {
     printf("--wrong command:%s\n",args[0]);
//      printf("exitting program\n");
     exit(1);
    }
  }
  else
  {
    printf( "--- PARENT waiting for the child to finish executing command ...\n\n" );
      childpid = waitpid( -1, &status, 0 /* null */ );
      printf( "\n--- PARENT will exit now that the CHILD is done, child PID=%d\n\n", 
              childpid );
      usleep( 2000000 );
   
  }
}
}