cpu.sh

#!/bin/bash

if [ -f /tmp/tmux-cpu ]; then
    cat /tmp/tmux-cpu
else
    echo "???"
fi

CPU=`mpstat 1 1` && echo $CPU | awk '{printf("%2.f", $(NF-8) + $(NF-6)) }' > /tmp/tmux-cpu &

io.sh

#!/bin/bash

if [ -f /tmp/tmux-io ]; then
    io=`cat /tmp/tmux-io`

    if [ "$io" -gt "75" ]; then
        echo "hi"
    elif [ "$io" -gt "20" ]; then
        echo "me"
    elif [ "$io" -gt "10" ]; then
        echo "lo"
    else
        echo "--"
    fi

else
    echo "??"
fi
IO=`iostat -x -d 1 2` && echo $IO | awk '{printf("%d", $(NF)) }' > /tmp/tmux-io &

load.sh

#!/bin/bash

cut -d " " -f 1-3 /proc/loadavg

mem_used.sh

#!/bin/bash
free -m | awk 'NR==3 { printf("%d\n", ($3/($3+$4)) * 100)  }'

tmux.conf

# 256 color
set -g default-terminal "screen-256color"

# prefix key
unbind C-b
set -g prefix ^a

# screen-like
bind ^C new-window
bind ^D detach-client
bind ^N next-window
bind ^P previous-window
bind ^K confirm-before -p "kill-window #S? (y/n)" kill-window
bind ^O last-window
bind ^A last-window

# Automatically set window title
setw -g automatic-rename on

# Allows for faster key repetition
set -g repeat-time 0

# copy selection color
setw -g mode-fg black
setw -g mode-bg green

# alert message line
set -g message-fg black
set -g message-bg green

# status line
set -g status-interval 2
set -g status-bg blue
set -g status-fg white
set -g status-left " "
set -g status-right '#[fg=white bg=black]Mem use:#($HOME/.tmux/statusline_helpers/mem_used.sh)% #[fg=green]IO:#($HOME/.tmux/statusline_helpers/io.sh) #[fg=yellow,bright]CPU:#($HOME/.tmux/statusline_helpers/cpu.sh)% #[fg=white,bright bg=red] #($HOME/.tmux/statusline_helpers/load.sh) #[default] #[fg=yellow,bright]%Y.%m.%d #[fg=green]%H:%M #[default]'
set -g status-right-length 100
setw -g window-status-current-fg white
setw -g window-status-current-bg black
setw -g window-status-current-format "[#I#F#W]"
setw -g window-status-format " #I#F#W "
#setw -g window-status-alert-fg black
#setw -g window-status-alert-bg white
#setw -g window-status-alert-attr default

# border
set -g pane-border-fg blue
set -g pane-border-bg black
set -g pane-active-border-fg blue
set -g pane-active-border-bg blue

# split
bind | split-window -h
bind _ split-window -v

# mouse
set -g mode-mouse on
set -g mouse-resize-pane on
set -g mouse-select-pane on
set -g mouse-select-window on

setw -g aggressive-resize on
set -g history-limit 1000000

# vim copy selection
bind-key ESCAPE copy-mode
bind-key -t vi-copy 'v' begin-selection
bind-key -t vi-copy 'y' copy-selection

# move around panes with hjkl, as one would in vim after pressing ctrl-w
bind h select-pane -L
bind j select-pane -D
bind k select-pane -U
bind l select-pane -R
bind ^H select-pane -L
bind ^J select-pane -D
bind ^K select-pane -U
bind ^L select-pane -R

# vi-style controls for copy mode
setw -g mode-keys vi