first try.

src/main.rs

@@ -1,3 +1,50 @@
-fn main() {
+use std::env;
-    println!("Hello, world!");
+use std::io::{self, Write};
+use std::process::Command;
+
+fn retry(cmd: &String, cmd_args: &[String]) {
+    loop {
+        let output = Command::new(cmd)
+            .args(cmd_args)
+            .output()
+            .map_err(|e| {
+                eprintln!("Failed to execute command: {}", e);
+                io::stderr().flush().unwrap();
+            });
+
+        match output {
+            Ok(output) => {
+                if output.status.success() {
+                    io::stdout().write_all(&output.stdout).unwrap();
+                    break;
+                } else {
+                    eprintln!("Command failed with status: {}", output.status);
                 }
+            }
+            Err(_) => {
+                println!("Error, wait 1s for retry.")
+            }
+        }
+
+        std::thread::sleep(std::time::Duration::from_secs(1));
+    }
+}
+
+fn main() {
+    let args: Vec<String> = env::args().collect();
+
+    if args.len() < 2 {
+        eprintln!("Usage: {} <cmd> [args...]", args[0]);
+        std::process::exit(1);
+    }
+
+    let cmd = &args[1];
+    let cmd_args = if args.len() > 2 {
+        &args[2..]
+    } else {
+        &[]
+    };
+
+    retry(cmd, cmd_args);
+}
+