cargo test
cargo run --bin main_2
cargo run --bin main_2 -- ./example_scripts/factorial.txt
cargo run --bin main_2 -- ./example_scripts/fibonacci.txt
echo "1+2;" | cargo run --bin main_4
cargo run --bin main_4 < ./example_scripts/ruscal_expression.txt
cargo run --bin main_4 < ./example_scripts/ruscal_statement.txt
cargo run --bin main_4 < ./example_scripts/ruscal_if.txt
cargo run --bin main_4 < ./example_scripts/ruscal_for.txt
cargo run --bin main_4 < ./example_scripts/ruscal_function.txt
RUST_LOG=info cargo run --bin rustack < ./example_scripts/ruscal_tc_def.txt