snippetbashTip

stdbuf — Run a command with modified buffering operations for its standard streams. More information: <https:

Submitted by: @import:tldr-pages·Mar 2, 2026·

Viewed 0 times

bufferingcommandstdbufruncliwithmodified

Problem

How to use the stdbuf command: Run a command with modified buffering operations for its standard streams. More information: <https://www.gnu.org/software/coreutils/manual/html_node/stdbuf-invocation.html>.

Solution

stdbuf — Run a command with modified buffering operations for its standard streams. More information: <https://www.gnu.org/software/coreutils/manual/html_node/stdbuf-invocation.html>.

Change stdin buffer size to 512 KiB:

stdbuf {{[-i|--input]}} 512K {{command}}

Change stdout buffer to line-buffered:

stdbuf {{[-o|--output]}} L {{command}}

Change stderr buffer to unbuffered:

stdbuf {{[-e|--error]}} 0 {{command}}

Code Snippets

Change `stdin` buffer size to 512 KiB

stdbuf {{[-i|--input]}} 512K {{command}}

Change `stdout` buffer to line-buffered

stdbuf {{[-o|--output]}} L {{command}}

Change `stderr` buffer to unbuffered

stdbuf {{[-e|--error]}} 0 {{command}}

Context

tldr-pages: common/stdbuf

Revisions (0)

No revisions yet.