Feat: Add word counter binary.

src/bin/counter.rs

@@ -0,0 +1,22 @@
+use clap::Parser;
+use std::path::PathBuf;
+
+/// Count the number of lines in a file
+#[derive(Parser)]
+#[command(arg_required_else_help = true)]
+struct Cli {
+    /// The path to the file to read
+    file: PathBuf,
+}
+
+fn main() {
+    let args = Cli::parse();
+    let mut word_count = 0;
+    let file = args.file;
+
+    for line in std::fs::read_to_string(&file).unwrap().lines() {
+        word_count += line.split(' ').count();
+    }
+
+    println!("Words in {}: {}", file.to_str().unwrap(), word_count)
+}