Unix and Electronics references

  
ssh -p21098

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Mac Stuff

  
 



Setting up a local webserver on the mac


mac gnu utils
  
ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)" 
Then add the following line to your .bashrc or .zshrc: 
export PATH="$(brew --prefix coreutils)/libexec/gnubin:/usr/local/bin:$PATH"  
brew install screen

vnc from mac terminal

open vnc://192.168.60.102:5901

.bash_profile

source ~/.bashrc 
source ~/.profile

ttl to serial cable



screen /dev/cu.Repleo-PL2303-00002014 115200

Mac Serial Driver

.aliases

alias ,='/bin/ls -AC -F -b'
alias ,,='/bin/ls -lA -F -b'
alias ,,,='/bin/ls -AC1 -F -b'
alias ,l='/bin/ls -AC -F -b |less -E'
alias ,,l='/bin/ls -Al -F -b |less -E'
alias ,,,l='/bin/ls -AC1 -F -b |less -E'
alias ..='cd ..'
alias e='exit'
alias x='startx'
alias s='screen -R'
alias hg='history |grep'

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Raspi Stuff

raspi-config

run scripts on startup
How To Autorun A Python Script On Boot Using systemd


Extra io
MCP23017 I2C Port Expander With The Raspberry Pi


check for hotspots: 
sudo iwlist wlan0 scan 
sudo vi /etc/wpa_supplicant/wpa_supplicant.conf 
sudo ifdown wlan0 and sudo ifup wlan0 


Bring up and down the lan and renew dhcp: 
sudo ifup wlan0 
dhclient -v {interface_name} 
(renew dhcp) 
brng network up and down  
sudo ifdown eth0 && sudo ifup eth0  
 
 
wifi setup: 
wpa_gui 
 
sudo apt-get install samba samba-common-bin 
sudo vi /etc/samba/smb.conf 
workgroup = WORKGROUP 
sudo service samba restart 
 
[pihome]  
comment= Pi Home  
path=/home/pi  
browseable=Yes  
writeable=Yes  
only guest=no  
create mask=0777  
directory mask=0777  
public=no 
 
smbpasswd -a pi 
 
sudo reboot 
 
apt-cache search ftp 
 
 
gpio -v 
gpio readall 
 
install apache 
sudo apt-get install apache2 php5 libapache2-mod-php5 -y 
cd /var/www/html 
 
send a file via rsync 
rsync -av -e 'ssh -p21098' ./localfile robin@lefever.website:~/  
 

w3m 
 
wget -r -npH lefever.website/utils/ 
 
SSH 
ssh -l robin lefever.website -p 21098 
 
sudo apt-get install weavedconnectd 
sudo weavedinstaller 
 
sudo apt-get install mlocate 
sudo updatedb 
locate /   

set the time
sudo ntpd -q -g
 
sudo apt-get install wavemon 
( wifi monitoring )  
 
process manager  
sudo apt-get install htop 
 
ssh keygen 
ssh-keygen -R server.example.com 
 
get ip on pi: 
ifconfig 
 
ssh to pi: 
ssh -l pi 192.168.60.102 
 
run vnc from pi: 
sudo apt-get install tightvncserver 
tightvncserver 
 
vnc from mac terminal 
open vnc://192.168.60.102:5901 
 
to set a root password: 
sudo su 
passwd 
 
sudo apt-get update 
sudo apt-get upgrade 
sudo apt-get dist-upgrade 
sudo apt-get install raspberrypi-ui-mods 
sudo apt-get install raspberrypi-net-mods 
 
 
sudo chown user:user ~/.Xauthority 
 
 
to send a file from mac to pi over ssh 
rsync -v -e ssh ./bashaliases.txt pi@192.168.60.102:~/ 
 
Shutdown x: 
Sorry the ctrl-alt-F1, ctrl-C 
 
Firmware update: 
sudo rpi-update 
 

alias ,='/bin/ls -AC --color=tty -F -b' 
alias ,,='/bin/ls -lA --color=tty -F -b' 
alias ,,,='/bin/ls -AC1 --color=tty -F -b' 
alias ,l='/bin/ls -AC --color=tty -F -b |less -E' 
alias ,,l='/bin/ls -Al --color=tty -F -b |less -E' 
alias ,,,l='/bin/ls -AC1 --color=tty -F -b |less -E' 
alias ..='cd ..' 
alias e='exit'
alias x='startx'
alias s='screen -R'
alias hg='history |grep'

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Electronics

circuit design

http://fritzing.org/download/ Goto the Top

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Unix

head -n 2 < list1 > list2 
will read from list1, passing it to head to take the first two lines, 
then putting these in a file called list2. Add in a pipe: 
sort < list1 | uniq > list3 
 
export PS1="[$(date +%k:%M:%S)]u@h w> " 
 
clear
 
tar zxvf Rpi.GPIO-0.4.1a.tar.gz 
 
sudo dd if=~/Downloads/2015-05-05-wheezy-raspbian.img 
of=/dev/sdb bs=1M 
 
Use sudo fdisk -l both 
before and after plugging in the SD card (you can also use df to see what’s 
mounted). If, say, a /dev/sdb appears, with the size equal to the SD card, 
then unmount with umount /dev/sdb1. Now copy the disk image with 

perl script to replace tabs with spaces
perl -pi.old -e 's{t+}{ }g' file.txt

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VI things

vi .exrc startup file 
alt S # splits the screen 
:resize +3 # increases the size 
alt tab # switches window 
set autoindent  
set noautoindent 
.vimrc? 
:set noai followed by :set ai

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Onion

5v -> 3.3v
3.3v step down on Amazon


SFTP  
Onion  
Onion
pagekite.me
pagekite.net

startup.sh 
sleep 20
sudo /usr/sbin/screen -d -m /root/pagekite.py

oupgrade --latest

opkg install screen

opkg install python


/etc/profile

alias ll='ls -alF --color=auto'
alias ,='ls -AC -F'
alias ,,='ls -lA -F'
alias ,,,='ls -AC1 -F'
alias ,l='ls -AC -F |less -E'
alias ,,l='ls -Al -F |less -E'
alias ,,,l='ls -AC1 -F |less -E'
alias ..='cd ..'
alias e='exit'
alias x='startx'
alias s='screen -R'
alias hg='history |grep'

add
shell -/bin/ash
to /etc/screenrc

$ screen -ls
$ screen -X -S [session # you want to kill] quit

etc/profile
add after line 4:
******
IP=$(/sbin/ifconfig apcli0| grep 'inet addr:' | cut -d: -f2 | awk '{ print $1}')
echo "wlan0 IP: $IP"
*********

echo oneshot > /sys/class/leds/omega2p:amber:system/trigger


php

http://192.168.140.108/php/php_onion/HowToUse.php


PHP GPIO Example


opkg update
opkg install php7 php7-cgi

vi /etc/config/uhttpd

config uhttpd 'main'
        list listen_http '0.0.0.0:80'
        list listen_http '[::]:80'
        list listen_https '0.0.0.0:443'
        list listen_https '[::]:443'
        option redirect_https '1'
        option home '/www'
        option rfc1918_filter '1'
        option max_requests '3'
        option max_connections '100'
        option cert '/etc/uhttpd.crt'
        option key '/etc/uhttpd.key'
        option cgi_prefix '/cgi-bin'
        option script_timeout '60'
        option network_timeout '30'
        option http_keepalive '20'
        option tcp_keepalive '1'
        option ubus_prefix '/ubus'

Add this to the last line of that block of text (there is another block of text after this, I've left that out for simplicity)

list interpreter ".php=/usr/bin/php-cgi"
option index_page 'index.php'

Now we need to restart the web server, we do this by running this command:

/etc/init.d/uhttpd restart

w3m

SFTP
SFTP
To make sftp server work:

/etc/opkg/distfeeds.conf

We need to remove the two #marks from the line that reads:
## src/gz reboot_packages http://downloads.lede-project.org/snapshots/packages/mipsel_24kc/packages

Articles:
Article on using Atom editor and sftp
Article on git
Article to make traffic light webpage control gpios


opkg update
opkg install openssh-sftp-server

Wifi tools
wifi # tries to connect
wifimanager -v # tries to connect and diagnose
iwinfo # shows wifi networks and strength

aps # wireless network scan

aps:Security            vw:ApCliAuthMode/ApCliEncrypType
=========================================================
WPA1PSKWPA2PSK/TKIPAES	WPA2PSK/AES
WPA2PSK/AES		WPA2PSK/AES
WPA2PSK/TKIP		WPA2PSK/TKIP
WPAPSK/TKIPAES		WPAPSK/TKIP
WPAPSK/AES		WPAPSK/AES
WPAPSK/TKIP		WPAPSK/TKIP
WEP			WEP/WEP


ia #shows network connections

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Computing

Unix and Electronics references

Mac Stuff

vnc from mac terminal

.bash_profile

ttl to serial cable

.aliases

Raspi Stuff

Electronics

circuit design

Unix

VI things

Onion

Onion

SFTP

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Links