Created
January 6, 2017 05:54
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Raspberry Pi motd
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#!/bin/bash | |
clear | |
function color (){ | |
echo "\e[$1m$2\e[0m" | |
} | |
function extend (){ | |
local str="$1" | |
let spaces=60-${#1} | |
while [ $spaces -gt 0 ]; do | |
str="$str " | |
let spaces=spaces-1 | |
done | |
echo "$str" | |
} | |
function center (){ | |
local str="$1" | |
let spacesLeft=(78-${#1})/2 | |
let spacesRight=78-spacesLeft-${#1} | |
while [ $spacesLeft -gt 0 ]; do | |
str=" $str" | |
let spacesLeft=spacesLeft-1 | |
done | |
while [ $spacesRight -gt 0 ]; do | |
str="$str " | |
let spacesRight=spacesRight-1 | |
done | |
echo "$str" | |
} | |
function sec2time (){ | |
local input=$1 | |
if [ $input -lt 60 ]; then | |
echo "$input seconds" | |
else | |
((days=input/86400)) | |
((input=input%86400)) | |
((hours=input/3600)) | |
((input=input%3600)) | |
((mins=input/60)) | |
local daysPlural="s" | |
local hoursPlural="s" | |
local minsPlural="s" | |
if [ $days -eq 1 ]; then | |
daysPlural="" | |
fi | |
if [ $hours -eq 1 ]; then | |
hoursPlural="" | |
fi | |
if [ $mins -eq 1 ]; then | |
minsPlural="" | |
fi | |
echo "$days day$daysPlural, $hours hour$hoursPlural, $mins minute$minsPlural" | |
fi | |
} | |
borderColor=35 | |
headerLeafColor=32 | |
headerRaspberryColor=31 | |
greetingsColor=36 | |
statsLabelColor=33 | |
borderLine="━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━" | |
borderTopLine=$(color $borderColor "┏$borderLine┓") | |
borderBottomLine=$(color $borderColor "┗$borderLine┛") | |
borderBar=$(color $borderColor "┃") | |
borderEmptyLine="$borderBar $borderBar" | |
# Header | |
header="$borderTopLine\n$borderEmptyLine\n" | |
header="$header$borderBar$(color $headerLeafColor " .~~. .~~. ")$borderBar\n" | |
header="$header$borderBar$(color $headerLeafColor " '. \ ' ' / .' ")$borderBar\n" | |
header="$header$borderBar$(color $headerRaspberryColor " .~ .~~~..~. _ _ ")$borderBar\n" | |
header="$header$borderBar$(color $headerRaspberryColor " : .~.'~'.~. : ___ ___ ___ ___| |_ ___ ___ ___ _ _ ___|_| ")$borderBar\n" | |
header="$header$borderBar$(color $headerRaspberryColor " ~ ( ) ( ) ~ | _| .'|_ -| . | . | -_| _| _| | | | . | | ")$borderBar\n" | |
header="$header$borderBar$(color $headerRaspberryColor " ( : '~'.~.'~' : ) |_| |__,|___| _|___|___|_| |_| |_ | | _|_| ")$borderBar\n" | |
header="$header$borderBar$(color $headerRaspberryColor " ~ .~ ( ) ~. ~ |_| |___| |_| ")$borderBar\n" | |
header="$header$borderBar$(color $headerRaspberryColor " ( : '~' : ) ")$borderBar\n" | |
header="$header$borderBar$(color $headerRaspberryColor " '~ .~~~. ~' ")$borderBar\n" | |
header="$header$borderBar$(color $headerRaspberryColor " '~' ")$borderBar" | |
me=$(whoami) | |
# Greetings | |
greetings="$borderBar$(color $greetingsColor "$(center "Welcome back, $me!")")$borderBar\n" | |
greetings="$greetings$borderBar$(color $greetingsColor "$(center "$(date +"%A, %d %B %Y, %T")")")$borderBar" | |
# System information | |
loginIp=$(last $me | awk 'NR==2 { print $3 }') | |
loginDate=$(last -aF $me | awk 'NR==2 { print $3,$4,$5,$6,$7 }') | |
if [[ $loginDate == *T* ]]; then | |
login="$(date -d "$loginDate" +"%A, %d %B %Y, %T")" | |
else | |
# Not enough logins | |
login="None" | |
fi | |
label1="$(extend "$login")" | |
label1="$borderBar $(color $statsLabelColor "Last Login....:") $label1$borderBar" | |
uptime="$(sec2time $(cut -d "." -f 1 /proc/uptime))" | |
uptime="$uptime ($(date -d "@"$(grep btime /proc/stat | cut -d " " -f 2) +"%d-%m-%Y %H:%M:%S"))" | |
label2="$(extend "$uptime")" | |
label2="$borderBar $(color $statsLabelColor "Uptime........:") $label2$borderBar" | |
label3="$(extend "$(free -m | awk 'NR==2 { printf "Total: %sMB, Used: %sMB, Free: %sMB",$2,$3,$4; }')")" | |
label3="$borderBar $(color $statsLabelColor "Memory........:") $label3$borderBar" | |
label4="$(extend "$(df -h ~ | awk 'NR==2 { printf "Total: %sB, Used: %sB, Free: %sB",$2,$3,$4; }')")" | |
label4="$borderBar $(color $statsLabelColor "Home space....:") $label4$borderBar" | |
label5="$(extend "$(/opt/vc/bin/vcgencmd measure_temp | cut -c "6-9")ºC")" | |
label5="$borderBar $(color $statsLabelColor "Temperature...:") $label5$borderBar" | |
stats="$label1\n$label2\n$label3\n$label4\n$label5" | |
# Print motd | |
echo -e "$header\n$borderEmptyLine\n$greetings\n$borderEmptyLine\n$stats\n$borderEmptyLine\n$borderBottomLine" |
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