NAME rainbarf - CPU/RAM/battery stats chart bar for tmux (and GNU screen) VERSION version 0.5 SYNOPSIS rainbarf --tmux --width 40 --no-battery DESCRIPTION Fancy resource usage charts to put into the tmux status line. The CPU utilization history chart is tinted with the following colors to reflect the system memory allocation: * green: free memory; * yellow: active memory; * blue: inactive memory; * red: wired memory on *Mac OS X*; * cyan: cached memory on *Linux*. If available, battery charge is displayed on the right. Just go to to see some screenshots. USAGE Installation perl Build.PL ./Build test ./Build install Configuration Add the following line to your ~/.tmux.conf file: set -g status-right '#(rainbarf)' Or, under *GNOME Terminal*: set -g status-right '#(rainbarf --bright)' Reload the tmux config by running "tmux source-file ~/.tmux.conf". OPTIONS --help This. --[no]battery Display the battery charge indicator. --[no]remaining Display the time remaining until the battery is fully charged/empty. See "CAVEAT". --[no]bolt Display even fancier battery indicator. --[no]bright Tricky one. Disabled by default. See "CAVEAT". --fg COLOR_NAME Force chart foreground color. --bg COLOR_NAME Force chart background color. --[no]loadavg Use load average metric instead of CPU utilization. You might want to set the "--max" threshold since this is an absolute value and has varying ranges on different systems. --max NUMBER Maximum "loadavg" you expect before rescaling the chart. Default is 1. --order INDEXES Specify the memory usage bar order. The default is "fwaic" ( free, wired, active, inactive & cached ). --[no]tmux Force "tmux" colors mode. By default, rainbarf detects automatically if it is being called from "tmux" or from the interactive shell. --screen screen(1) colors mode. Experimental. See "CAVEAT". --width NUMBER Chart width. Default is 38, so both the chart and the battery indicator fit the "tmux" status line. Higher values may require disabling the battery indicator or raising the "status-right-length" value in ~/.tmux.conf. CAVEAT Time remaining If the "--remaining" option is present but you do not see the time in your status bar, you may need to increase the value of "status-right-length" to 48. Color scheme If you only see the memory usage bars but no CPU utilization chart, that's because your terminal's color scheme need an explicit distinction between foreground and background colors. For instance, "red on red background" will be displayed as a red block on such terminals. Thus, you may need the ANSI bright attribute for greater contrast. There are two problems with it, though: 1. Other color schemes (notably, solarized ) have different meaning for the ANSI bright attribute. So using it will result in a quite psychedelic appearance. 2. The older versions of Term::ANSIColor dependency do not recognize it at all, resulting in a confusing error message *Invalid attribute name bright_yellow at ...*. However, the whole Term::ANSIColor is optional, it is only required to preview the effects of the "OPTIONS" via command line before actually editing the ~/.tmux.conf. That is, "rainbarf --bright --tmux" is guaranteed to work despite the outdated Term::ANSIColor! Persistent storage CPU utilization stats are persistently stored in the ~/.rainbarf.dat file. Every rainbarf execution will update and rotate that file. Since "tmux" calls rainbarf periodically (every 15 seconds, by default), the chart will display CPU utilization for the last ~9.5 minutes (15 * 38). Thus, several "tmux" instances running simultaneously for the same user will result in a faster chart scrolling. screen Stable "screen" version unfortunately has a broken UTF-8 handling specifically for the status bar. Thus, I have only tested the rainbarf with the variant from . My ~/.screenrc contents: backtick 1 15 15 rainbarf --bright --screen hardstatus string "%1`" hardstatus lastline REFERENCES * top(1) is used to get the CPU/RAM stats if no /proc filesystem is available. * ioreg(8) is used to get the battery status on *Mac OS X*. * ACPI is used to get the battery status on *Linux*. * Battery was a source of inspiration. * Spark was another source of inspiration. AUTHOR Stanislaw Pusep CONTRIBUTORS * Clemens Hammacher * Joe Hassick * Tuomas Jormola COPYRIGHT AND LICENSE This software is copyright (c) 2013 by Stanislaw Pusep . This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.