Read from stdin - BunDocumentation Index
Fetch the complete documentation index at: /docs/llms.txt
Use this file to discover all available pages before exploring further.
Skip to main contentBun home pageconst prompt = "Type something: ";
process.stdout.write(prompt);
for await (const line of console) {
console.log(`You typed: ${line}`);
process.stdout.write(prompt);
}
Running this file results in a never-ending interactive prompt that echoes whatever the user types.
terminalbun run index.ts
Type something: hello You typed: hello Type something: hello again You typed: hello againBun also exposes stdin as a BunFile via Bun.stdin. This is useful for incrementally reading large inputs that are piped into the bun process. There is no guarantee that the chunks will be split line-by-line. stdin.ts
for await (const chunk of Bun.stdin.stream()) {
// chunk is Uint8Array
// this converts it to text (assumes ASCII encoding)
const chunkText = Buffer.from(chunk).toString();
console.log(`Chunk: ${chunkText}`);
}
This will print the input that is piped into the bun process.
terminalecho "hello" | bun run stdin.ts
Chunk: helloSee Docs > API > Utils for more useful utilities.
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