stdbuf(1)

NAME
stdbuf - Run `COMMAND`, with modified buffering operations for its standard streams. Mandatory arguments to long options are mandatory for short options too.

SYNOPSIS
stdbuf [-i|--input] [-o|--output] [-e|--error] [-h|--help] [-V|--version] <command>

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

Mandatory arguments to long options are mandatory for short options too.

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
v0.0.27