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doc: add note about child process line buffering

Fixes #4808.
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bnoordhuis committed Feb 22, 2013
1 parent ef94521 commit 22d3eff8f46d336337aa5d9625f6d5be9104bcff
Showing with 3 additions and 1 deletion.
  1. +3 −1 doc/api/child_process.markdown
@@ -6,7 +6,9 @@ Node provides a tri-directional `popen(3)` facility through the
`child_process` module.

It is possible to stream data through a child's `stdin`, `stdout`, and
`stderr` in a fully non-blocking way.
`stderr` in a fully non-blocking way. (Note that some programs use
line-buffered I/O internally. That doesn't affect node.js but it means
data you send to the child process is not immediately consumed.)

To create a child process use `require('child_process').spawn()` or
`require('child_process').fork()`. The semantics of each are slightly

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