STDBUF(1) STDBUF(1) (NAME) stdbuf - (SYNOPSIS) stdbuf ... (DESCRIPTION) . . -i, --input=MODE -o, --output=MODE -e, --error=MODE --help --version MODE 'L' (line buffered) . . MODE '0' (unbuffered) . MODE : KB 1000 K 1024 MB 1000*1000 M 1024*1024 G T P E Z Y. : KiB=K MiB=M . MODE . : ( 'tee' ) 'stdbuf' . ( 'dd' 'cat' ) / 'stdbuf' . (EXAMPLES) tail -f access.log | stdbuf -oL cut -d ' ' -f1 | uniq access.log . (BUGS) GLIBC . (AUTHOR) Padraig Brady. (REPORTING BUGS) GNU coreutils: : (COPYRIGHT) (C) 2022 Free Software Foundation, Inc. GPLv3+: GPL . : . . (SEE ALSO) : info '(coreutils) stdbuf invocation' GNU coreutils 9.1 STDBUF(1)