Add not builtin command - touch

src/touch.rs

@@ -0,0 +1,21 @@
+use std::env;
+use std::fs::{self, File};
+use std::path::Path;
+
+fn main(){
+    let args: Vec<String> = env::args().collect();
+    for arg in 1..args.len() {
+        match args[arg].as_str() {
+            "--help" => {
+                println!("Usage: touch [OPTIONS] FILE");
+                println!("Creates empty file");
+                return;
+            },
+            arg => {
+                if !Path::new(arg).exists() {
+                    File::create(arg);
+                }
+            }
+        }
+    }
+}