stdbuf

       dard streams.

SYNOPSIS
       stdbuf OPTION... COMMAND

DESCRIPTION
       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.

       Otherwise  MODE is a number which may be followed by one of the follow-
       ing: 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.

EXAMPLES
       tail -f access.log | stdbuf -oL cut -d ' ' -f1 | uniq
       This will immedidately display unique entries from access.log

BUGS
       On GLIBC platforms, specifying a buffer size, i.e. using fully buffered
       mode will result in undefined operation.

AUTHOR
       Written by Padraig Brady.

REPORTING BUGS
       Report stdbuf bugs to bug-coreutils@gnu.org
       If  the  info  and stdbuf programs are properly installed at your site,
       the command

              info coreutils 'stdbuf invocation'

       should give you access to the complete manual.



GNU coreutils 8.21                March 2016                         STDBUF(1)
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