FM / byobu

/usr/lib/byobu

Name	Size	Mode	Actions
include/	-	0755	rm
apport	1543	0755	edit dl rm
arch	916	0755	edit dl rm
battery	4202	0755	edit dl rm
color	1061	0755	edit dl rm
cpu_count	1055	0755	edit dl rm
cpu_freq	1882	0755	edit dl rm
cpu_temp	1828	0755	edit dl rm
custom	1927	0755	edit dl rm
date	990	0755	edit dl rm
disk	1846	0755	edit dl rm
disk_io	3073	0755	edit dl rm
distro	1060	0755	edit dl rm
entropy	1089	0755	edit dl rm
fan_speed	1894	0755	edit dl rm
hostname	1480	0755	edit dl rm
ip_address	3056	0755	edit dl rm
load_average	1123	0755	edit dl rm
logo	4843	0755	edit dl rm
mail	1337	0755	edit dl rm
memory	2675	0755	edit dl rm
menu	1651	0755	edit dl rm
network	3176	0755	edit dl rm
processes	1146	0755	edit dl rm
raid	1465	0755	edit dl rm
reboot_required	2206	0755	edit dl rm
release	1872	0755	edit dl rm
services	2146	0755	edit dl rm
session	1321	0755	edit dl rm
swap	1792	0755	edit dl rm
time	1081	0755	edit dl rm
time_binary	4278	0755	edit dl rm
time_utc	960	0755	edit dl rm
trash	1159	0755	edit dl rm
updates_available	6017	0755	edit dl rm
uptime	1676	0755	edit dl rm
users	1563	0755	edit dl rm
whoami	1290	0755	edit dl rm
wifi_quality	2822	0755	edit dl rm

Edit: /usr/lib/byobu/time_binary (4278B)

#!/bin/bash -e
#---------------------------------------------------------------------
# Script to display a "binary clock" using unicode characters from the
# braille block.
#
# Designed to work with the wonderful byobu(1) but can be run
# stand-alone.
#---------------------------------------------------------------------
#
# Copyright (C) 2011 Canonical Ltd.
#
# Author: James Hunt <james.hunt@canonical.com>
#
# 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/>.
#
#---------------------------------------------------------------------

script_name=${0##*/}

# Selected Unicode Braille characters:
#
#  0x2800, 0x2880, 0x2820, 0x28a0, 0x2810, 0x2890, 0x2830, 0x28b0, 0x2808, 0x2888,
#  0x2840, 0x28c0, 0x2860, 0x28e0, 0x2850, 0x28d0, 0x2870, 0x28f0, 0x2848, 0x28c8,
#  0x2804, 0x2884, 0x2824, 0x28a4, 0x2814, 0x2894, 0x2834, 0x28b4, 0x280c, 0x288c,
#  0x2844, 0x28c4, 0x2864, 0x28e4, 0x2854, 0x28d4, 0x287b, 0x28f4, 0x284c, 0x28cc,
#  0x2802, 0x2882, 0x2822, 0x28a2, 0x2812, 0x2892, 0x2832, 0x28b2, 0x280a, 0x288a,
#  0x2842, 0x28c2, 0x2862, 0x28e2, 0x2852, 0x28d2, 0x2872, 0x28f2, 0x284a, 0x28ca,
#  0x2806, 0x2886
#
# Index of this array is 0-61 with character returned being
# "two column" binary representation of a time segment.
#
binary=(⠀ ⢀ ⠠ ⢠ ⠐ ⢐ ⠰ ⢰ ⠈ ⢈ \
         ⡀ ⣀ ⡠ ⣠ ⡐ ⣐ ⡰ ⣰ ⡈ ⣈ \
         ⠄ ⢄ ⠤ ⢤ ⠔ ⢔ ⠴ ⢴ ⠌ ⢌ \
         ⡄ ⣄ ⡤ ⣤ ⡔ ⣔ ⡻ ⣴ ⡌ ⣌ \
         ⠂ ⢂ ⠢ ⢢ ⠒ ⢒ ⠲ ⢲ ⠊ ⢊ \
         ⡂ ⣂ ⡢ ⣢ ⡒ ⣒ ⡲ ⣲ ⡊ ⣊ ⠆ ⢆)

usage()
{
cat <<EOT
Description: A clock that displays the time in binary.

Usage: $script_name [options]

Options:

-b         : Display binary clock (default)
 -h         : Show this help.
 -l         : Display leading zeros (hex and octal modes only).
 -m         : Show time in 24-hour military format
              (default: 12-hour format).
 -n         : Suppress newline at end of time.
 -o         : Display time in octal (base 8).
 -s <sep>   : Specify separator between hours and minutes
              (and seconds if not disabled).
 -u         : Display alphabetics in upper-case (hex mode only).
 -x         : Disable time in hexadecimal (base 16).
 -z         : Disable display of seconds.

EOT
}

suppress_seconds=n
clock_type=binary
format=std
ending=""
uppercase=n
leading_zeros=n

while getopts "bhlmnos:uxz" opt
do
  case "$opt" in
    b) 
      clock_type=binary
    ;;

h) 
      usage
      exit 0
    ;;

l) 
      leading_zeros=y
    ;;

m) 
      format=mil
    ;;

n) 
      ending=
    ;;

o) 
      clock_type=oct
    ;;

s) 
      sep=$OPTARG
    ;;

u)
      uppercase=y
    ;;

x) 
      clock_type=hex
    ;;

z) 
      suppress_seconds=y
    ;;
  esac
done

if [ -z "$clock_type" ]
then
  printf "%s\n" "ERROR: must specify clock type"
  exit 1
fi

shift $[$OPTIND-1]

# get current time, handling 12-hour or 24-hour
if [ $format = std ]
then
  hrs_format=%l
else
  hrs_format=%k
fi

time=($(date "+${hrs_format} %M %S"))
h=$(printf ${time[0]})
m=$(printf ${time[1]})
s=$(printf ${time[2]})

if [ $clock_type = binary ]
then
  [ $suppress_seconds = n ] && seconds="${sep}${binary[10#$s]}"
  display_time="${binary[10#$h]}${sep}${binary[10#$m]}${seconds}${ending}"
else
  if [ $clock_type = hex ]
  then
    conversion=x
    [ $uppercase = y ] && conversion=X
  else
    conversion=o
  fi
  precision=
  [ $leading_zeros = y ] && precision=.2
  base_format=%2${precision}${conversion}

hh=$(printf "$base_format" $h)
  hm=$(printf "$base_format" $m)
  [ "$suppress_seconds" = n ] && hs="${sep}$(printf "$base_format" $s)"
  display_time="${hh}${sep}${hm}${hs}${ending}"
fi

color k w
printf "%s" "$display_time"
color --

cmd: