nobuf

## Name

nobuf — run a program without stdio block buffering

## Synopsis

`nobuf` {`subprogram`} {`args`...}

## Description

nobuf `subprogram` is similar to `subprogram` with one exception. If `subprogram` uses stdio, it will use block buffering rather than line buffering when its output is redirected; nobuf `subprogram` will always use line buffering.

Internally, nobuf obtains a new pty and runs `subprogram` under it, transparently forwarding input and output. nobuf initializes the pty to remote mode, where tty processing is disabled, input is flow-controlled, and end-of-file is passed through to `subprogram`.

nobuf is a synonym for ptyget ptyio -r ptyspawn -23x . ptyspawn(1) options may be used with nobuf.

## History

nobuf was originally part of Daniel J. Bernstein's ptyget toolset in 1996.

## Author

Original code and documentation by Daniel J. Bernstein. Documentation modernizations by Jonathan de Boyne Pollard.