Pi Command Hint

just my notes

Posted: 02/20/2015 | Author: lokir | Filed under: Other | Leave a comment

Original post:  http://www.aymerick.com/2013/12/25/munin_client_on_raspberrypi.html

Add this line:

[pisense_*] user root



cd /usr/share/munin/plugins  sudo wget -O pisense_ https://raw.github.com/perception101/pisense/master/pisense_ sudo chmod a+x pisense_ sudo ln -s /usr/share/munin/plugins/pisense_ /etc/munin/plugins/pisense_temp sudo ln -s /usr/share/munin/plugins/pisense_ /etc/munin/plugins/pisense_clock

Example output:

Posted: 04/28/2014 | Author: lokir | Filed under: linux | Leave a comment


# Author(s): Chris Trombley


LIST=$(cat /var/log/auth.log | grep "authentication failure" | awk '{print$14}' | grep -v tty=ssh |sed -e 's/rhost=//g' -e 's/ /_/g' | uniq)

excludeList=( "" "" "static-xxx-xxx-xxx-xxx.isp.domain.net" )

function chkExcludeList()


for j in "${excludeList[@]}"; do

if [[ "$1" == $j ]]; then

return 10



return 11


for i in $LIST; do

chkExcludeList "$i"

if [ $? != "10" ]; then

if [ "$(grep $i /etc/hosts.deny)" = "" ]; then

echo "ALL: $i : DENY" >> /etc/hosts.deny




Posted: 03/22/2013 | Author: lokir | Filed under: linux | Tags: Linux | Leave a comment

find PATH TO FILES GOES HERE* -mtime +5 -exec COMMAND GOES HERE {} \;

Posted: 02/10/2013 | Author: lokir | Filed under: Munin | Tags: Munin | Leave a comment

After installation of new service on server is nice to update Munin plug-ins.


/usr/sbin/munin-node-configure --suggest

/usr/sbin/munin-node-configure --shell | sh

/etc/init.d/munin-node restart

Plug-in list is up-to-date.

Posted: 01/12/2013 | Author: lokir | Filed under: raspberry pi | Leave a comment

Increase video buffering:

Create a file advancedsettings.xml here /Storage/.xbmc/userdata













more settings here: http://mrpfister.com/journal/setting-up-openelec-on-the-raspberry-pi/#comment-31801


(Be careful those setting will void your warranty)









Posted: 01/05/2013 | Author: lokir | Filed under: raspberry pi | 7 Comments

echo Raspberry Pi SysInfo.

echo ---------------------

MHZ=$(cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq)

TEMPE=$(cat /sys/class/thermal/thermal_zone0/temp)

echo Hardware:

echo CPU Speed $(($MHZ/1000)) Mhz "|" CPU Temp $(($TEMPE/1000)) C


Raspberry Pi SysInfo.



CPU Speed 850 Mhz | CPU Temp 28 C

gconftool-2 --set "/apps/metacity/general/button_layout" --type string ":minimize,maximize,close"

Posted: 10/20/2012 | Author: lokir | Filed under: Other | Tags: Raspberry Pi | 2 Comments

New Raspberry PI 512 MB of RAM possible memory splits:









Posted: 10/13/2012 | Author: lokir | Filed under: Other | Tags: Debian, Linux, Raspberry Pi, swap | Leave a comment

sudo nano /etc/dphys-swapfile

sudo dphys-swapfile setup

sudo dphys-swapfile swapon

Posted: 10/04/2012 | Author: lokir | Filed under: Other | Tags: Linux, memory | Leave a comment

ps -elf|awk '{print $10, $3, $4, $15, $16}'|sort -nr|head

Posted: 09/16/2012 | Author: lokir | Filed under: Other, raspberry pi | Tags: Chromium, Raspberry Pi | 48 Comments

1. Install chromium, x11-xserver-utils and unclutter

sudo apt-get update && apt-get upgrade -y

sudo apt-get install chromium x11-xserver-utils unclutter

2. We need to prevent screen from going blank and disable screen saver.

– edit /etc/xdg/lxsession/LXDE/autostart and comment # screen saver line and add those lines:

@xset s off

@xset -dpms

@xset s noblank

@chromium --kiosk --incognito http://some.web.


Posted: 11/08/2010 | Author: lokir | Filed under: ubuntu | Tags: wifi ubuntu | Leave a comment

1. The Debian Avahi (nss-mdns) Bug

There is a known bug doing the rounds in Debian based distros, this includes Ubuntu.

The problem is in the nsswitch.conf file where wins mdns causes a slowdown of DNS resolution on some machines.


A simple workaround for this problem is to remove mdns4_minimal entry from the nsswitch.conf file, or change mdns4_minimal to just mdns4 (whichever works best for you):

Edit this file- /etc/nsswitch.conf

Scroll down to the entry which says:

hosts: files dns wins mdns4_minimal

and delete the mdns4_minimal entry. (I removed wins as well), s it looks like this:

hosts: files dns

2. Check your DNS in resolv.conf

You should only have two entries (usually) which are your Internet Service Provider’s DNS servers.

Check and/or edit your dns servers:

gksudo scite /etc/resolv.conf

It should look something like this:

search my.isp.com



You may have an extra IP address there, possibly your router (, and if you haven’t got dns servers configured in your router config, this may cause a problem/slowdown as well. EG:

search my.isp.com




Just remove the first one and leave the two ISP DNS server IP’s.

original link http://ubuntuforums.org/showthread.php?t=1487039&page=2

Posted: 11/05/2010 | Author: lokir | Filed under: ubuntu | Leave a comment

sudo iwconfig wlan0 rate 54M

Available rates: 1, 2, 6, 9, 12, 18, 24, 36, 48 and 54

Posted: 06/19/2010 | Author: lokir | Filed under: ubuntu | Leave a comment

gconf-editor – gnome configuration tool

rcconf – system services configuration tool

Posted: 05/11/2010 | Author: lokir | Filed under: ubuntu | Leave a comment

1. Open a Terminal and type

gksudo gedit /etc/fstab

2. Add this line

/dev/sdaX /media/sdaX ntfs-3g user,defaults 0 0

X – depend on your partition layout. To check partition layout type:

sudo fdisk -l

Posted: 04/30/2010 | Author: lokir | Filed under: ubuntu | 2 Comments

1 Open terminal or press Alt+F2


2. locate this


and tick a box.

Source: http://ubuntuforums.org/showthread.php?t=77346

Posted: 04/17/2010 | Author: lokir | Filed under: ubuntu | Leave a comment

1. touch /etc/X11/xorg.conf

2. open file and paste this:

Section "Monitor"

Identifier "Monitor1"

Vendorname "Generic LCD"

Horizsync 31.5-48.0

Vertrefresh 56.0-65.0


Section "Screen"

Identifier "Screen1"

Monitor "Monitor1"

Subsection "Display"

Modes "1024x768" "800x600"



3. save & restart xorg

Posted: 03/27/2010 | Author: lokir | Filed under: ubuntu | Leave a comment


htop, nload, wavemon, mtr


tetris, greed, ninvaders

eye candy:


Posted: 03/22/2010 | Author: lokir | Filed under: ubuntu | Leave a comment

to make a new rule:

sudo iptables -I INPUT -s -j DROP

to delete a rule:

sudo iptables -D INPUT x

x=rule number

to list iptables rules:

iptables -L

Posted: 03/19/2010 | Author: lokir | Filed under: ubuntu | Leave a comment

sudo aptitude install nautilus-image-converter

right click on a picture

– resize

– rotate

Posted: 02/23/2010 | Author: lokir | Filed under: ubuntu | Tags: swap, swappiness | 1 Comment

The swappiness parameter controls the tendency of the kernel to move processes out of physical memory and onto the swap disk. Because disks are much slower than RAM, this can lead to slower response times for system and applications if processes are too aggressively moved out of memory.

The default setting in Ubuntu is swappiness=60. Reducing the default value of swappiness will probably improve overall performance for a typical Ubuntu desktop installation. A value of swappiness=10 is recommended, but feel free to experiment. Note: Ubuntu server installations have different performance requirements to desktop systems, and the default value of 60 is likely more suitable.

To check the swappiness value

cat /proc/sys/vm/swappiness

To change the swappiness value A temporary change (lost on reboot) with a swappiness value of 10 can be made with

sudo sysctl vm.swappiness=10

To make a change permanent, edit the configuration file with your favorite editor:

gksudo gedit /etc/sysctl.conf

Search for vm.swappiness and change its value as desired. If vm.swappiness does not exist, add it to the end of the file like so:


Save the file and reboot.


original article https://help.ubuntu.com/community/SwapFaq

Posted: 02/23/2010 | Author: lokir | Filed under: ubuntu | Tags: ubuntu, vodafone | Leave a comment

Vodafone Pay As You Go (UK) config

APN is pp.internet should be ppbundle.internet

user / password: web / web