int main (void){
struct sysinfo myinfo;
unsigned long total_bytes;
int num_vcpu,num_lv;
sysinfo( &myinfo );
total_bytes = myinfo.mem_unit * myinfo.totalram;
puts("-------------------------------------");
printf("Memory: %lu MB\n", total_bytes/1024/1024);
FILE *fp = popen("lscpu --extended=CPU | grep ^[0-9] | wc -l","r");
fscanf(fp, "%d", &num_vcpu);
printf("vCPUs: %d\n", num_vcpu);
pclose(fp);
puts("-------------------------------------");
system ("lvs");
FILE *fp2 = popen("lvs | wc -l","r");
fscanf(fp2, "%d", &num_lv);
pclose(fp2);
if (num_lv >= 2){
int ch;
printf("Delete any LVs? [y/n]:" );
ch = getchar();
while ( ch == 'y' || ch == 'Y'){
puts("Inside while loop");
printf("Delete additional LVs? [y/n]:" );
clear_kb();
ch = getchar();
}
/*
char input[]="y";
do{
puts("Delete any LVs? [y/n]:" );
fgets(input,10,stdin);
puts("INSIDE DO");
}
while(strcmp(input,"y")== 0);
*/ /*while*/
}/*if*/
return 0;
}
int main( void )
{
FILE *fp;
float data[5];
int count;
char filename[20];
puts("Enter 5 floating-point numberical values.");
for (count = 0; count < 5; count++)
scanf("%f", &data[count]);
/* Get the filename and open the file. First clear stdin */
/* of any extra characters. */
clear_kb();
puts("Enter a name for the file.");
gets(filename);
if ((fp = fopen(filename, "w")) == NULL)
{
fprintf(stderr, "Error opening file %s.", filename);
exit(1);
}
/* Write the numerical data to the file and to stdout. */
for (count = 0; count < 5; count++)
{
fprintf(fp, "\ndata[%d] = %f", count, data[count]);
fprintf(stdout, "\ndata[%d] = %f", count, data[count]);
}
fclose(fp);
printf("\n");
return 0;
}
