Run COMMAND, with modified buffering operations for its standard streams.
Mandatory arguments to long options are mandatory for short options too.
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.
tail -f access.log | stdbuf -oL cut -d ‘ ‘ -f1 | uniq
Report stdbuf bugs to [email protected]
GNU coreutils home page: <http://www.gnu.org/software/coreutils/>
General help using GNU software: <http://www.gnu.org/gethelp/>
Report stdbuf translation bugs to <http://translationproject.org/team/>
Copyright © 2010 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
The full documentation for
is maintained as a Texinfo manual. If the
programs are properly installed at your site, the command
should give you access to the complete manual.