stdbuf - Run COMMAND, with modified buffering operations for its standard streams.
Run COMMAND, with modified buffering operations for its standard streams. Mandatory arguments to long options are mandatory for short options too.
-i, --input=MODE Adjust standard input stream buffering -o, --output=MODE Adjust standard output stream buffering -e, --error=MODE Adjust standard error stream buffering --help display this help and exit --version output version information and exit 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.