it could definitely work

.gitignore

@@ -0,0 +1 @@
+/target

Cargo.lock

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Cargo.toml

@@ -0,0 +1,15 @@
+[package]
+authors = ["ReactorScram"]
+categories = ["command-line-utilities"]
+description = "ls + cat == lk"
+name = "look_at_that"
+license = "AGPL-3.0"
+version = "0.1.0"
+edition = "2024"
+
+[[bin]]
+name = "lk"
+path = "src/main.rs"
+
+[dependencies]
+anyhow = { version = "1.0.97", features = ["backtrace"] }

src/main.rs

@@ -0,0 +1,29 @@
+use anyhow::{Context as _, Result, bail};
+
+fn main() -> Result<()> {
+    use std::fs;
+
+    let mut args = std::env::args();
+    let _exe_name = args.next().context("How do we not have an exe name?")?;
+    let mut filenames = vec![];
+    for arg in args {
+        filenames.push(arg);
+    }
+    for filename in filenames {
+        let metadata = fs::metadata(&filename)?;
+        if metadata.is_dir() {
+            shell_out("/usr/bin/ls", &filename)?;
+        } else {
+            shell_out("/usr/bin/cat", &filename)?;
+        }
+    }
+    Ok(())
+}
+
+fn shell_out(cmd: &str, arg: &str) -> Result<()> {
+    let status = std::process::Command::new(cmd).arg(arg).status()?;
+    if !status.success() {
+        bail!("subprocess {cmd} failed");
+    }
+    Ok(())
+}