我找不到 coredump

Question

lsb_release -a

No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 18.04.4 LTS
Release:    18.04
Codename:   bionic

***** 来源 ******

// This is a disposable program for expermentation
#include <stdio.h>
#include <time.h>

int i;
char c;
int main() {
    //float now = time(NULL);
    int now = time(NULL);
    for (i = 32; i < 66; ++i){
        c = i ;
        printf("**********\n");
        printf(" %d\n",i);
        printf(" %c\n", c);
        printf("^^^^^^^^^^\n");
        //printf("Now: %f \n", now);
        printf("Now: %d \n", now);
        } /* end for */
        // The four lines below were added in hopes of creating a core dump.
        int foo = 1;
        int bar = 0;
        int result = foo/bar;
        printf("Result: %d", result);
 return (0);
} // end main..

************* 来源结束 ********

从命令行运行 gcc。

.../miscplayground$ gcc -g -o foobar play.c

运行编译的代码。

miscplayground$ ./foobar 

---

 32
  
^^^^^^^^^^
Now: 1605890415 
**********
 33
 !
^^^^^^^^^^
Now: 1605890415 

****** 注意：输出的中间部分已被剪切，目的是删除与问题无关的数据。******************** 结束注意 *************************************

^^^^^^^^^^
Now: 1605890415 
**********
 64
 @
^^^^^^^^^^
Now: 1605890415 
**********
 65
 A
^^^^^^^^^^
Now: 1605890415 
Floating point exception (core dumped)
(base)

运行“sudo updatedb”然后重新启动以确保数据库已被读取后，我运行

$ sudo locate -i coredump | grep -i foobar
[sudo] password for kindness: 
(base) kindness@kindness-Latitude-E6220:~/development/go/Go_pdf$ 
 

**** 注意，没有返回结果。 *******