andmis

Contest math problems require specialized skills and tricks that are different from doing research. It's like asking how an elite soccer player would perform running the hurdles. Better than a lay person, perhaps very well with training, perhaps not.

Try fish. The quoting rules are simple. I never have to read the docs or try repeatedly to get quoting right. The shell syntax in general is small and simple.

The only downside to fish is that it's not POSIX compliant, but if you're familiar with POSIX shells this is rarely a problem for interactive use, and you can use Bash for scripting if you like.