horrible programming thing of the day: put this line at the top of a single-file C program
//usr/bin/gcc $0 && ./a.out;exit
and chmod +x it. now you have a C script you don't have to compile and run with separate invocations, just call it like any script :)
@typhlosion imo you should make it more cursed by having it check for existing compilers and trying to install one via popular packet managers