Data update

Task/Execute-a-system-command/Rust/execute-a-system-command.rs

@@ -0,0 +1,7 @@
+use std::process::Command;
+fn main() {
+    let output = Command::new("ls").output().unwrap_or_else(|e| {
+        panic!("failed to execute process: {}", e)
+    });
+    println!("{}", String::from_utf8_lossy(&output.stdout));
+}