Add not builtin command - rmdir

src/main.rs

@@ -76,7 +76,7 @@ fn main(){
                 },
                 "pwd" => {
                     println!("{}", pwd.display());
-                }
+                },
                 "exit" => return,
                 command => {
                     let stdin = previous_command
@@ -106,7 +106,7 @@ fn main(){
                             eprintln!("{}", e);
                         },
                     };
-                }
+                },
             }
         }
 

src/rmdir.rs

@@ -0,0 +1,26 @@
+use std::env;
+use std::fs;
+
+fn main() {
+    let mut verbose_flag = false;
+    let args: Vec<String> = env::args().collect();
+    for arg in 1..args.len() {
+        match args[arg].as_str() {
+            "--help" => {
+                println!("Usage: rmdir [OPTIONS] DIRECTORY");
+                println!("Removes empty directory");
+                return;
+            },
+            "-v" | "--verbose" => {
+                verbose_flag = true;
+            },
+            arg => {
+                    fs::remove_dir(arg.to_string());
+                    if verbose_flag {
+                        println!("rmdir: removed directory '{}'", arg);
+                    }
+                
+            },
+        }; 
+    }
+}