#include <stdio.h>
FILE *fp,*fp1,*fp2,*fp3;
char a[60],b[60],c[80],f[12],g[4];
char head[72][80];
main(int ac,char **av)
{
  if(ac<2){
    printf("\n\t ******** mv *.*.*  *_*.* **********\n\n");
    exit(0);
  }
  mv();
  printf("\n\t****** OK ! ********\n");
} 

mv()
{
  int i,j,k;
  system("ls *.fits *.fit>1.1");
  fp=fopen("1.1","r");
l10:
  fgets(a,60,fp); if(feof(fp))goto l20;
  k=0; j=strlen(a)-1; a[j]=0; strcpy(b,a);
  for(i=0;i<j-5;i++)if(b[i]=='.'){ k=1; b[i]='_'; }
  if(k){
    sprintf(c,"mv %s %s",a,b);
    system(c); printf("%s\n",c);
  }
  goto l10;
l20:
  fclose(fp);
}