tmux-code

#! /bin/bash

# Copy of /usr/lib/byobu/uptime
# License for uptime-code
#    uptime: condensed uptime of the machine
#
#    Copyright (C) 2009 Rapha&euml;l Pinson.
#    Copyright (C) 2009 Canonical Ltd.
#    Copyright (C) 2011-2014 Dustin Kirkland
#
#    Authors: Rapha&euml;l Pinson <raphink@ubuntu.com>
#             Dustin Kirkland <kirkland@byobu.org>
#
#    This program is free software: you can redistribute it and/or modify
#    it under the terms of the GNU General Public License as published by
#    the Free Software Foundation, version 3 of the License.
#
#    This program is distributed in the hope that it will be useful,
#    but WITHOUT ANY WARRANTY; without even the implied warranty of
#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#    GNU General Public License for more details.
#
#    You should have received a copy of the GNU General Public License
#    along with this program.  If not, see <http://www.gnu.org/licenses/>.
# with colors removed
__uptime() {
local u= idle= str=
 if [ -r /proc/uptime ]; then
    read u idle < /proc/uptime
    u=${u%.*}
    if [ "$u" -gt 86400 ]; then
      str="$(($u / 86400))d$((($u % 86400) / 3600))h"
    elif [ "$u" -gt 3600 ]; then
      str="$(($u / 3600))h$((($u % 3600) / 60))m"
    elif [ "$u" -gt 60 ]; then
      str="$(($u / 60))m"
    else
      str="${u}s"
    fi
  else
    str=$(uptime | sed -e "s/.* up *//" -e "s/ *days, */d/" -e "s/:/h/" -e "s/,.*/m/")
  fi
  [ -n "$str" ] || return
  printf "%s" "${str}";
}

# Based on /usr/lib/byobu/load_average
__load() {
  if [ -r "/proc/loadavg" ]; then
    read one five fifteen procs lastpid < /proc/loadavg;
    printf "$one"
  fi
}

__reboot() {
    if [ -f /var/run/reboot-required ]; then 
        printf '&#128260; ';
    else
        printf ''; 
    fi
}

case $1 in
uptime*)
  __uptime
  ;;
load*)
  __load
  ;;
reboot*)
  __reboot
  ;;
*)
    printf "$(__reboot)$(__uptime) $(__load)"
  ;;
esac