Add function for evaluating shell commands

src/main.rs

@@ -11,6 +11,7 @@
 mod vga_buffer;
 mod interrupts;
 mod gdt;
+mod shell;
 use core::panic::PanicInfo;
 
 

src/shell.rs

@@ -0,0 +1,7 @@
+use crate::println;
+
+pub fn evaluate(command: &str) {
+    println!();
+    println!();
+    println!("[ {} ]", command.trim());
+}