MaiLinhGroup

space = " "
j = 1
print "Weihnachtsbaum in Python 2.x"
start = 1
stop = 6
incr = 2
for i in range(start,stop,incr):
    if i < stop - 1 :
    	print space*j ,"*" * i
    	j -= 1

MaiLinhGroup

#!/bin/bash
echo "Insert sd card in pi and boot first:"
echo ">>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>"
sudo arp-scan --interface=wlp4s0 --localnet
read -p "enter pi adress" pi
ssh-copy-id -i ~/.ssh/id_rsa.pub $pi
ssh $pi

MaiLinhGroup

country=DE
ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
update_config=1

network={
	ssid="NETWORK-NAME"
	psk="NETWORK-PASSWORD"
}

MaiLinhGroup

#!/usr/bin/env bash

# download and write image to sd card
image() {
    read -p "Enter raspbian image download link: " link
    if [ -n "$link" ]; then
        echo "Download latest raspbian image from:" $link
    else
        link=https://downloads.raspberrypi.org/raspbian_lite_latest
        echo "No link provided. Using default link:" $link

MaiLinhGroup

#!/usr/bin/env bash

ssh_wifi() {
    touch /Volumes/boot/ssh
    
    touch wpa_supplicant.conf
    echo "country=DE" >> wpa_supplicant.conf
    echo "ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev" >> wpa_supplicant.conf
    echo "update_config=1" >> wpa_supplicant.conf
    echo "network={" >> wpa_supplicant.conf

MaiLinhGroup

#!/bin/bash          
echo "Set up raspbian image on sd card:"
echo ">>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>"

#use df -h to discover all partitions of the sd card
#umount all partitions first before keep going

df -h
echo ">>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>"
echo "unmount all partitions of the sd card first"

MaiLinhGroup

#!/bin/bash
echo "Setup ssh:"
echo ">>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>"

rm ssh
touch ssh 
echo "some text to enable ssh on raspbian jessie" > ssh

df -h
read -p "path to boot from sd card:" bootpath

MaiLinhGroup

#!/bin/bash
echo "Assign static ip to raspberry pi:"
echo ">>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>"

echo "Choose unused IP adress not appear in following list:"
sudo arp-scan --interface=wlp4s0 --localnet
read -p "192.168.1." freeIP

rm eth0
touch eth0

MaiLinhGroup

#! /usr/bin/env zsh

for f in *.wav; do sox --ignore-length $f ../$1/$f ; done

MaiLinhGroup

# dictionary comprehension
dict_original = {'a': 1, 'b': 2, 'c': 3, 'd': 4, 'e': 5}
my_new_dict = {k:v for (k,v) in dict_original.items()}

# list comprehension
list_original = ['h', 'u', 'm', 'a', 'n']
my_new_list = [letter+letter for letter in list_original] #[expression for item in list]
print(my_new_list) # ['hh', 'uu', 'mm', 'aa', 'nn']