#include <stdio.h>
#include <signal.h>
#include <stdlib.h>

static void sig_hdl(int signo){
	printf("catched \n");	
	getchar();
	signal(SIGINT, SIG_DEF);		
}

int main(){
	signal(SIGTERM, sig_hdl);
//	signal(SIGKILL, sig_hdl); it is impossible to catch SIGKILL !!
	signal(SIGINT, sig_hdl);
	//etc...
	while(1){
	 
	}
	return 0;
}