Self-compile and run C file. chmod +x and ./run it!

selfcompilerun.c

#if 0
set -e
[ -z "$CC" ] && CC=$(which tcc clang gcc cc | head -1)
out="$(tempfile -p $(echo $(basename $0) | cut -f 1 -d '.'))"
$CC -pipe -x c -std=c99 -g -ftrapv -o $out "$0"
exec $out "$@"
#endif

#include <stdio.h>

int main(int argc, const char *const *argv) {
  remove(argv[0]);
  printf("hello, world!\n");
  for (int i = 0; i < argc; i++) {
    printf("argv[%d] = %s\n", i, argv[i]);
  }
  return 0;
}