stdbuf (1)

Name

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

Synopsis

stdbuf OPTION... COMMAND

Description

User Commands                                           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.

     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  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  corre-
     sponding  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 corre-
     sponding 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
     This  will  immedidately   display   unique   entries   from
     access.log





GNU coreutils 8.16    Last change: June 2014                    1






User Commands                                           STDBUF(1)



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
     GNU coreutils home page:  <http://www.gnu.org/software/core-
     utils/>
     General  help  using GNU software: <http://www.gnu.org/geth-
     elp/>
     Report stdbuf translation  bugs  to  <http://translationpro-
     ject.org/team/>

COPYRIGHT
     Copyright  (C)  2012 Free Software Foundation, Inc.  License
     GPLv3+:     GNU     GPL     version     3      or      later
     <http://gnu.org/licenses/gpl.html>.
     This  is  free  software:  you are free to change and redis-
     tribute it.  There is NO WARRANTY, to the  extent  permitted
     by law.


ATTRIBUTES
     See   attributes(5)   for   descriptions  of  the  following
     attributes:

     +---------------+--------------------+
     |ATTRIBUTE TYPE |  ATTRIBUTE VALUE   |
     +---------------+--------------------+
     |Availability   | file/gnu-coreutils |
     +---------------+--------------------+
     |Stability      | Uncommitted        |
     +---------------+--------------------+
SEE ALSO
     The full documentation for stdbuf is maintained as a Texinfo
     manual.   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.



NOTES
     This  software  was   built   from   source   available   at
     https://java.net/projects/solaris-userland.    The  original
     community       source       was       downloaded       from
     http://ftp.gnu.org/gnu/coreutils/coreutils-8.16.tar.xz



GNU coreutils 8.16    Last change: June 2014                    2






User Commands                                           STDBUF(1)



     Further  information about this software can be found on the
     open source community  website  at  http://www.gnu.org/soft-
     ware/coreutils/.




















































GNU coreutils 8.16    Last change: June 2014                    3