SAME EXAMPLE IN C

cis-lclient01:~/2011/aug30>pico intover.c  (try nano if pico isn't there)
#include <stdio.h>
main(int argc, char *argv[]) {
  int i, j;
  j = 1;
  for (i = 1; i <= 10; i++) {
    j = j * 10;
    printf("j = %i\n", j);
  }
}
^X
Save modified buffer (ANSWERING "No" WILL DESTROY CHANGES) ? Y  
File Name to write : intover.c   
cis-lclient01:~/2011/aug30>ls -l
total 8
-rw------- 1 stafford domain users  128 May 17 14:58 intover.c
-rw------- 1 stafford domain users  451 May 17 14:18 intover.class
-rw------- 1 stafford domain users  207 May 17 14:34 intover.java
cis-lclient01:~/2011/aug30>gcc intover.c
cis-lclient01:~/2011/aug30>ls -l
total 12
-rwx------ 1 stafford domain users 4719 May 17 13:58 a.out
-rw------- 1 stafford domain users  128 May 17 14:58 intover.c
-rw------- 1 stafford domain users  451 May 17 14:18 intover.class
-rw------- 1 stafford domain users  207 May 17 14:34 intover.java
cis-lclient01:~/2011/aug30>./a.out
j = 10
j = 100
j = 1000
j = 10000
j = 100000
j = 1000000
j = 10000000
j = 100000000
j = 1000000000
j = 1410065408
cis-lclient01:~/2011/aug30>
cis-lclient01:~/2011/aug30>ls -al
total 28
drwx------ 2 stafford domain users 4096 May 17 14:18 .
drwx------ 4 stafford domain users 4096 May 17 15:20 ..
-rwx------ 1 stafford domain users 4719 May 17 13:58 a.out
-rw------- 1 stafford domain users  128 May 17 14:58 intover.c
-rw------- 1 stafford domain users  451 May 17 14:18 intover.class
-rw------- 1 stafford domain users  207 May 17 14:34 intover.java
cis-lclient01:~/2011/aug30>