byobu-ugraph man page

byobu-ugraph — helper script for notification history graphs


byobu-ugraph is a helper script that can be used to create history graphs


byobu-ugraph [options] [command [args...]]


 -f <file>   : File to read data points from.  (only required if no command specified).
 -h          : Show this help.
 -m <num>    : Minimum value (default=$min_default).
 -n          : Supress output of newline character.
 -p <points> : Specify number of data points in graph (default=$points_default).
 -r          : Do not rotate file <file> (default is to rotate).  Option implies file <file> should not be written to so a command cannot follow script options in this case.
 -t <theme>  : 'byobu-ulevel' theme to use (default=$theme_default).
 -x <num>    : Maximum value (default=$max_default).


Using byobu-ugraph to run a command, rotate log and display graph.

Here we specify a command to display available memory.  Trailing echo adds a required newline Note no filename specified.

   byobu-ugraph "(/usr/lib/byobu/mem_used | sed -e 's/% //g';echo)"

Using byobu-ugraph just to rotate log and display the graph

   awk '{ print $1}' /proc/loadavg >> $file
   # Note: we need to specify what we consider to be a "reasonable" maximum load
   byobu-ugraph -m 3.0 -f $file


If you specify 'command', care must be taken with shell quoting to avoid expansion prior to this script running the command.

If '-r' is not specified, the file <file> will be rotated such that at most <points> lines are retained on each invocation of this script.

See Also



This utility was written by James Hunt <>, and this manpage was written by Dustin Kirkland <> for Ubuntu systems (but may be used by others).  Permission is granted to copy, distribute and/or modify this document and the utility under the terms of the GNU General Public License, Version 3 published by the Free Software Foundation.

The complete text of the GNU General Public License can be found in /usr/share/common-licenses/GPL on Debian/Ubuntu systems, or in /usr/share/doc/fedora-release-*/GPL on Fedora systems, or on the web at


16 Dec 2013 byobu