init

.gitignore

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+/target

Cargo.lock

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+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 4
+
+[[package]]
+name = "hexdump"
+version = "0.1.0"

Cargo.toml

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+[package]
+name = "hexdump"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]

example.txt

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+forsen is bald
+forsen is bald
+forsen is bald

src/hd_ai.rs

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+use std::env;
+use std::fs::File;
+use std::io::{self, Read};
+
+fn main() -> io::Result<()> {
+    // Get the file name from command line arguments
+    let args: Vec<String> = env::args().collect();
+    if args.len() < 2 {
+        eprintln!("Usage: {} <filename>", args[0]);
+        return Ok(());
+    }
+    let filename = &args[1];
+
+    // Open the file
+    let mut file = File::open(filename)?;
+    let mut buffer = Vec::new();
+
+    // Read the file into the buffer
+    file.read_to_end(&mut buffer)?;
+
+    // Print the hex dump
+    for (i, byte) in buffer.iter().enumerate() {
+        // Print the address
+        if i % 16 == 0 {
+            if i != 0 {
+                println!(); // New line after every 16 bytes
+            }
+            print!("{:08x}  ", i);
+        }
+        // Print the byte in hex format
+        print!("{:02x} ", byte);
+    }
+    println!(); // Final new line
+
+    Ok(())
+}

src/main.rs

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+use std::env;
+use std::fs;
+
+fn main() {
+    let args: Vec<String> = env::args().collect();
+
+    if args.len() < 2 {
+        eprintln!("Usage: {} <file>", args[0]);
+        return;
+    }
+
+    let file_path = &args[1];
+    let contents = fs::read(file_path).expect("Failed to read file");
+
+    println!("File name: {file_path}\n");
+    println!("Contents of the file but in hex:");
+
+    hex(&contents);
+}
+
+fn hex(bytes: &[u8]) {
+    for (i, &byte) in bytes.iter().enumerate() {
+        if i % 8 == 0 {
+            print!("\n{:08x}:  ", i);
+        }
+        print!("{:04x} ", byte);
+    }
+
+    println!();
+}