Raspberry Pi Scripts

By: David

Here is a collection of Raspberry Pi scripts that I’ve put together over the past few months to make running and recovery easier and things just generally a little brighter when using ssh on my Raspberry Pi.

$Raspberry Pi Scripts - after all, there\'s more than one type of Raspberry...$

My Raspberry Pi scripts

Make no bones about it – the Raspberry Pi scripts here are by no means advanced, but they work without errors and help things keep running smoothly.

That said, I like ’em.

Initialisation script

Bar far the handiest of my Raspberry Pi scripts – initialise.sh.

This script is saved in your user’s home directory as initialise.sh and I run it after a reboot or power outage.

I used to have problems with my Owncloud installation as the disk is a USB key and it was having trouble mounting properly so I started with that and built it up from there.

The script does the following (in order):

Start a VNC server with a screen size of 1024×768 in 24bit colour depth and 96dpi.
unmount, mount and check the HFS+ filesystem of my USB key
restart Apache to allow Owncloud to run properly.

After a restart, that gets everything running smoothly again. As I said – handy.

#!/bin/sh
### BEGIN INIT INFO
# Provides:          myscript
# Required-Start:    $local_fs $network
# Required-Stop:     $local_fs
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: myscript
# Description:       Start VNC and mount OwnCloud Drives
### END INIT INFO

#
# A script to set up a couple of bits on my Pi
# Such as VNC, Owncloud, and to unmount, fsck and mount
# USB Disk and /dev/sda1.  Also restarts Apache2.
#
# Define text colours
RED='\033[0;31m' #Red
GR='\033[0;32m' #Green
BL='\033[1;34m' #Blue
NC='\033[0m' # No Color (Au Naturale)

echo ""
echo "Raspberry Pi Initialisation Script"
echo "(C) David Hall 2015"
echo ""
echo "Script being run by ${GR}$USER${NC} on ${GR}$(date)${NC}"
echo ""
echo "${BL}Starting VNC Server${NC}"
echo ""
# Start VNC Server
vncserver :1 -geometry 1024x768 -depth 24 -dpi 96 > /dev/null
# If loop checks completion status of the last command
# If $? = 0, the command was successful. 1 for failure. 
if [ $? -eq 0 ]; then
    echo "${GR}***      VNC Server Started      ***${NC}"
    echo "${BL}Connect using the form x.x.x.x:1${NC}"
    echo ""
else
    echo "${RED}***   VNC Server Not Started     ***${NC}"
    echo "${RED}You will not be able to connect to VNC${NC}"
    echo ""
fi
echo "${BL}Mounting OwnCloud drive${NC}"
echo "${BL}Unmount USB Disk"
# Unmount /dev/sda1
sudo umount /dev/sda1 > /dev/null
if [ $? -eq 0 ]; then
    echo "${GR}*** Drive unmounted successfully  ***${NC}"
    echo ""
else
    echo "${RED}***Drive unmounted unsuccessfully ***${NC}"
    echo ""
fi
echo "${BL}Check Filesystem on USB Disk${NC}"
# Check volume on sda1 - HFS+ formatting on this system
sudo fsck /dev/sda1
echo "${BL}Mount USB Disk For OwnCloud${NC}"
# mount /dev/sda1 to /media/owncloud
sudo mount /dev/sda1 /media/owncloud > /dev/null
if [ $? -eq 0 ]; then
    echo "${GR}***   Drive mounted successfully  ***${NC}"
    echo ""
else
    echo "${RED}***  Drive mounted unsuccessfully ***${NC}"
    echo ""
fi
echo "${BL}Restarting Apache${NC}"
# Restart apache to enable owncloud to use the USB disk
sudo service apache2 restart > /dev/null
if [ $? -eq 0 ]; then
    echo "${GR}***  Apache started successfully  ***${NC}"
    echo ""
else
    echo "${GR}*** Apache started unsuccessfully ***${NC}"
    echo ""
fi
echo "${BL}You're ${GR}good${BL} to go!${NC}"
echo ""

#!/bin/sh

### BEGIN INIT INFO

# Provides: myscript

# Required-Start: $local_fs $network

# Required-Stop: $local_fs

# Default-Start: 2 3 4 5

# Default-Stop: 0 1 6

# Short-Description: myscript

# Description: Start VNC and mount OwnCloud Drives

### END INIT INFO

# A script to set up a couple of bits on my Pi

# Such as VNC, Owncloud, and to unmount, fsck and mount

# USB Disk and /dev/sda1. Also restarts Apache2.

# Define text colours

RED='\033[0;31m' #Red

GR='\033[0;32m' #Green

BL='\033[1;34m' #Blue

NC='\033[0m' # No Color (Au Naturale)

echo ""

echo "Raspberry Pi Initialisation Script"

echo "(C) David Hall 2015"

echo ""

echo "Script being run by ${GR}$USER${NC} on ${GR}$(date)${NC}"

echo ""

echo "${BL}Starting VNC Server${NC}"

echo ""

# Start VNC Server

vncserver :1 -geometry 1024x768 -depth 24 -dpi 96 > /dev/null

# If loop checks completion status of the last command

# If $? = 0, the command was successful. 1 for failure.

if [ $? -eq 0 ]; then

echo "${GR}*** VNC Server Started ***${NC}"

echo "${BL}Connect using the form x.x.x.x:1${NC}"

echo ""

else

echo "${RED}*** VNC Server Not Started ***${NC}"

echo "${RED}You will not be able to connect to VNC${NC}"

echo ""

echo "${BL}Mounting OwnCloud drive${NC}"

echo "${BL}Unmount USB Disk"

# Unmount /dev/sda1

sudo umount /dev/sda1 > /dev/null

if [ $? -eq 0 ]; then

echo "${GR}*** Drive unmounted successfully ***${NC}"

echo ""

else

echo "${RED}***Drive unmounted unsuccessfully ***${NC}"

echo ""

echo "${BL}Check Filesystem on USB Disk${NC}"

# Check volume on sda1 - HFS+ formatting on this system

sudo fsck /dev/sda1

echo "${BL}Mount USB Disk For OwnCloud${NC}"

# mount /dev/sda1 to /media/owncloud

sudo mount /dev/sda1 /media/owncloud > /dev/null

if [ $? -eq 0 ]; then

echo "${GR}*** Drive mounted successfully ***${NC}"

echo ""

else

echo "${RED}*** Drive mounted unsuccessfully ***${NC}"

echo ""

echo "${BL}Restarting Apache${NC}"

# Restart apache to enable owncloud to use the USB disk

sudo service apache2 restart > /dev/null

if [ $? -eq 0 ]; then

echo "${GR}*** Apache started successfully ***${NC}"

echo ""

else

echo "${GR}*** Apache started unsuccessfully ***${NC}"

echo ""

echo "${BL}You're ${GR}good${BL} to go!${NC}"

echo ""

This script will look like this when run:

Sets you up for the day... — Sets you up for the day…

MOTD

This script replaces the .bash_profile in your user’s home folder. When it come to Raspberry Pi scripts, the MOTD is the one you will see most often (Especially if you’ve figured out cron!) so it’s a good idea to make it useful. Pretty also helps.

Whenever you log on the your Raspberry Pi using SSH (or when your not using graphical mode), .bash_profile runs by default and the message displayed above the user prompt.

### BEGIN INIT INFO
# Provides:          Message Of The Day (MOTD)
# Required-Start:    $local_fs
# Required-Stop:     $local_fs
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: 
# Description:       Message Of The Day (MOTD) - Includes System information, local weather info and a reminder to run the post reboot script manually.
### END INIT INFO

let upSeconds="$(/usr/bin/cut -d. -f1 /proc/uptime)"
let secs=$((${upSeconds}%60))
let mins=$((${upSeconds}/60%60))
let hours=$((${upSeconds}/3600%24))
let days=$((${upSeconds}/86400))
UPTIME=`printf "%d days, %02dh%02dm%02ds" "$days" "$hours" "$mins" "$secs"`

# get the load averages
read one five fifteen rest < /proc/loadavg

echo "$(tput setaf 2)
   .~~.   .~~.    `date +"%A, %e %B %Y, %r"`
  '. \ ' ' / .'   `uname -srmo`$(tput setaf 1)
   .~ .~~~..~.
  : .~.'~'.~. :   Uptime.............: ${UPTIME}
 ~ (   ) (   ) ~  Memory.............: `cat /proc/meminfo | grep MemFree | awk {'print $2'}`kB (Free) / `cat /proc/meminfo | grep MemTotal | awk {'print $2'}`kB (Total)
( : '~'.~.'~' : ) Load Averages......: ${one}, ${five}, ${fifteen} (1, 5, 15 min)
 ~ .~ (   ) ~. ~  Running Processes..: `ps ax | wc -l | tr -d " "`
  (  : '~' :  )   IP Addresses.......: `/sbin/ifconfig eth0 | /bin/grep "inet addr" | /usr/bin/cut -d ":" -f 2 | /usr/bin/cut -d " " -f 1` and `wget -q -O - http://icanhazip.com/ | tail`
   '~ .~~~. ~'    Weather............: `curl -s "http://rss.accuweather.com/rss/liveweather_rss.asp?metric=1&locCode=EUR|UK|UK001|EDINBURGH|" | sed -n '/Currently:/ s/.*: \(.*\): \([0-9]*\)\([CF]\).*/\2°\3, \1/p' `
       '~'
$(tput sgr0)
Don't forget to run 'sudo ./initialise.sh' to start VNC, etc.
Free Disk Space....: `df -Pk | grep -E '^/dev/sda1' | awk '{ print $4 }' | awk -F '.' '{ print $1 }'`k on /dev/sda1
"

### BEGIN INIT INFO

# Provides: Message Of The Day (MOTD)

# Required-Start: $local_fs

# Required-Stop: $local_fs

# Default-Start: 2 3 4 5

# Default-Stop: 0 1 6

# Short-Description:

# Description: Message Of The Day (MOTD) - Includes System information, local weather info and a reminder to run the post reboot script manually.

### END INIT INFO

let upSeconds="$(/usr/bin/cut -d. -f1 /proc/uptime)"

let secs=$((${upSeconds}%60))

let mins=$((${upSeconds}/60%60))

let hours=$((${upSeconds}/3600%24))

let days=$((${upSeconds}/86400))

UPTIME=`printf "%d days, %02dh%02dm%02ds" "$days" "$hours" "$mins" "$secs"`

# get the load averages

read one five fifteen rest < /proc/loadavg

echo "$(tput setaf 2)

.~~. .~~. `date +"%A, %e %B %Y, %r"`

'. \ ' ' / .' `uname -srmo`$(tput setaf 1)

.~ .~~~..~.

: .~.'~'.~. : Uptime.............: ${UPTIME}

~ ( ) ( ) ~ Memory.............: `cat /proc/meminfo | grep MemFree | awk {'print $2'}`kB (Free) / `cat /proc/meminfo | grep MemTotal | awk {'print $2'}`kB (Total)

( : '~'.~.'~' : ) Load Averages......: ${one}, ${five}, ${fifteen} (1, 5, 15 min)

~ .~ ( ) ~. ~ Running Processes..: `ps ax | wc -l | tr -d " "`

( : '~' : ) IP Addresses.......: `/sbin/ifconfig eth0 | /bin/grep "inet addr" | /usr/bin/cut -d ":" -f 2 | /usr/bin/cut -d " " -f 1` and `wget -q -O - http://icanhazip.com/ | tail`

'~ .~~~. ~' Weather............: `curl -s "http://rss.accuweather.com/rss/liveweather_rss.asp?metric=1&locCode=EUR|UK|UK001|EDINBURGH|" | sed -n '/Currently:/ s/.*: $.*$: $[0-9]*$$[CF]$.*/\2°\3, \1/p' `

'~'

$(tput sgr0)

Don't forget to run 'sudo ./initialise.sh' to start VNC, etc.

Free Disk Space....: `df -Pk | grep -E '^/dev/sda1' | awk '{ print $4 }' | awk -F '.' '{ print $1 }'`k on /dev/sda1

When run, it should look a little like this:

What the MOTD Script looks like when run.

So there you have it – a wee collection of Raspberry Pi scripts which I find useful.

Beer & Anvils