bun.sh/docs/guides/process/spawn-stdout.md at cf997aaef40296947fe170a2afa3fa00a9d98f84

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pfg 3223da2734 ReadableStream .text(), .json(), .arrayBuffer(), .bytes() (#20694 )

Co-authored-by: pfgithub <6010774+pfgithub@users.noreply.github.com>
Co-authored-by: Jarred Sumner <jarred@jarredsumner.com>

2025-06-28 00:27:57 -07:00

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Read stdout from a child process

When using Bun.spawn(), the stdout of the child process can be consumed as a ReadableStream via proc.stdout.

const proc = Bun.spawn(["echo", "hello"]);

const output = await proc.stdout.text();
output; // => "hello"

To instead pipe the stdout of the child process to stdout of the parent process, set "inherit".

const proc = Bun.spawn(["echo", "hello"], {
  stdout: "inherit",
});

See Docs > API > Child processes for complete documentation.