added example of making directories and reading them in rust

testing_rust_again/.gitignore

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+/target
+**/*.rs.bk

testing_rust_again/Cargo.lock

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+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+[[package]]
+name = "testing_rust_again"
+version = "0.1.0"
+

testing_rust_again/Cargo.toml

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+[package]
+name = "testing_rust_again"
+version = "0.1.0"
+authors = ["Penguin <...>"]
+edition = "2018"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]

testing_rust_again/src/main.rs

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+use std::fs;
+fn main()
+{
+    println!("Hello, world!");
+
+    
+    match fs::create_dir("a")
+    {
+        Err(why) => println!("! {:?}", why.kind()),
+        Ok(_) => {},
+    }
+
+	println!("We just made a new directory! Printing...\n");
+	match fs::read_dir(".")
+	{
+		Err(why) => println!("! {:?}", why.kind()),
+		Ok(paths) => for path in paths
+		{
+			println!("> {:?}", path.unwrap().path());
+		},
+	}
+
+	fs::remove_dir("a").unwrap_or_else(|why| {
+		println!("! {:?}", why.kind());
+	});
+
+
+	println!("We just removed that directory! Printing...\n");
+	match fs::read_dir(".")
+	{
+		Err(why) => println!("! {:?}", why.kind()),
+		Ok(paths) => for path in paths
+		{
+			println!("> {:?}", path.unwrap().path());
+		},
+	}
+
+}