add term

term/src/main.rs

@@ -0,0 +1,18 @@
+use atty::Stream;
+
+// https://crates.io/crates/atty
+// https://rosettacode.org/wiki/Check_output_device_is_a_terminal
+fn main() {  
+    if atty::is(Stream::Stdout) {
+        println!("I'm a terminal");
+    } else {
+        println!("I'm not");
+    }
+
+    let istty = unsafe { libc::isatty(libc::STDOUT_FILENO as i32) } != 0;
+    if istty {
+        println!("stdout is tty");
+    } else {
+        println!("stdout is not tty");
+    }
+}