#include <stdio.h>
// original
int main(){
    int (*ret)();

    if(getenv("EGG")==NULL){
        printf("Give me something to execute at the env-variable EGG\n");
        exit(1);
    }

    printf("Trying to execute EGG!\n");
    ret = getenv("EGG");
    ret();

    return 0;
}

// non-redundant getenv
int main() {
    int (*ret)();

    if((ret=getenv("EGG"))==NULL){
        printf("Give me something to execute at the env-variable EGG\n");
        exit(1);
    }

    printf("Trying to execute EGG!\n");
    ret();

    return 0;
}