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https://github.com/softprops/atty

are you or are you not a tty?
https://github.com/softprops/atty

library rust rust-library tty

Last synced: 13 days ago
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are you or are you not a tty?

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# atty

> [!WARNING]
> This is crate is no longer maintained and users are encouraged to prefer
> the equivalant functionality of [std.io.IsTerminal](https://doc.rust-lang.org/std/io/trait.IsTerminal.html), introduced in [Rust 1.70.0](https://blog.rust-lang.org/2023/06/01/Rust-1.70.0.html#isterminal)
>
> Thank you for your support!

[![Build Status](https://travis-ci.org/softprops/atty.svg?branch=master)](https://travis-ci.org/softprops/atty) [![Build status](https://ci.appveyor.com/api/projects/status/geggrsnsjsuse8cv?svg=true)](https://ci.appveyor.com/project/softprops/atty) [![Coverage Status](https://coveralls.io/repos/softprops/atty/badge.svg?branch=master&service=github)](https://coveralls.io/github/softprops/atty?branch=master) [![crates.io](https://img.shields.io/crates/v/atty.svg)](https://crates.io/crates/atty) [![Released API docs](https://docs.rs/atty/badge.svg)](http://docs.rs/atty) [![Master API docs](https://img.shields.io/badge/docs-master-green.svg)](https://softprops.github.io/atty)

> are you or are you not a tty?

## install

Add the following to your `Cargo.toml`

```toml
[dependencies]
atty = "0.2"
```

## usage

```rust
use atty::Stream;

fn main() {
if atty::is(Stream::Stdout) {
println!("I'm a terminal");
} else {
println!("I'm not");
}
}
```

## testing

This library has been unit tested on both unix and windows platforms (via appveyor).

A simple example program is provided in this repo to test various tty's. By default.

It prints

```bash
$ cargo run --example atty
stdout? true
stderr? true
stdin? true
```

To test std in, pipe some text to the program

```bash
$ echo "test" | cargo run --example atty
stdout? true
stderr? true
stdin? false
```

To test std out, pipe the program to something

```bash
$ cargo run --example atty | grep std
stdout? false
stderr? true
stdin? true
```

To test std err, pipe the program to something redirecting std err

```bash
$ cargo run --example atty 2>&1 | grep std
stdout? false
stderr? false
stdin? true
```

Doug Tangren (softprops) 2015-2019