STDBUF(1)                   General Commands Manual                  STDBUF(1)

NAME
       stdbuf - Run COMMAND, with modified buffering operations for its
       standard streams.

SYNOPSIS
       stdbuf [OPTION]... COMMAND

DESCRIPTION
       Run COMMAND, with modified buffering operations for its standard
       streams.

OPTIONS
       -i, --input <MODE>
              adjust standard input stream buffering

       -o, --output <MODE>
              adjust standard output stream buffering

       -e, --error <MODE>
              adjust standard error stream buffering

       -h, --help
              Print help

       -V, --version
              Print version

EXTRA
       If MODE is 'L' the corresponding stream will be line buffered.  This
       option is invalid with standard input.

       If MODE is '0' the corresponding stream will be unbuffered.

       Otherwise, MODE is a number which may be followed by one of the
       following:

       KB 1000, K 1024, MB 1000*1000, M 1024*1024, and so on for G, T, P, E,
       Z, Y.  In this case the corresponding stream will be fully buffered
       with the buffer size set to MODE bytes.

       NOTE: If COMMAND adjusts the buffering of its standard streams (tee
       does for e.g.) then that will override corresponding settings changed
       by stdbuf.  Also some filters (like dd and cat etc.) don't use streams
       for I/O, and are thus unaffected by stdbuf settings.

VERSION
       v(uutils coreutils) 0.11.0

                                  2026-09-01                         STDBUF(1)