Using gcc as a sort of scripting language.

[carl hansen]

  >>> cat e
#!/bin/sh
#
#
root -l -b <<DOIT

#include <stdio.h>
int main(void)
{
  puts("Hello, world, you can ignore all that particle physics if you like.");
  printf("By the way, log(2025) is %lf\n",log(2025.));
  printf("Here I have suppressed the banner\n");
  return 0;
}
DOIT

 >>> ./e
Hello, world, you can ignore all that particle physics if you like.
By the way, log(2025) is 7.613325
Here I have suppressed the banner