//更新树莓派

sudo apt-mark hold raspberrypi-bootloader

sudo apt-get update

sudo apt-get upgrade

//配置

raspi-config

//安装git

sudo apt-get install git-core

//安装wiringPi

git clone git://git.drogon.net/wiringPi 

//camera

sudo apt-get install libjpeg8-dev

sudo apt-get install cmake

git clone https://github.com/jacksonliam/mjpg-streamer.git

cd mjpg-streamer

make

sudo make install

mjpg_streamer -i "input_uvc.so -d /dev/video0 -r 320x240 -f 15" -o "output_http.so -p 8090 -w ./www"

//查看占用空间

 sudo du -h --max-depth= /opt

//删除非空目录

rm -rf ***

//ssh客户端提示加密算法错误，可以使用putty连接

Ciphers aes128-cbc,aes192-cbc,aes256-cbc,aes128-ctr,aes192-ctr,aes256-ctr,3des-cbc,arcfour128,arcfour256,arcfour,blowfish-cbc,cast128-cbc

MACs hmac-md5,hmac-sha1,umac-@openssh.com,hmac-ripemd160,hmac-sha1-,hmac-md5-

KexAlgorithms diffie-hellman-group1-sha1,diffie-hellman-group14-sha1,diffie-hellman-group-exchange-sha1,diffie-hellman-group-exchange-sha256,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group1-sha1,curve25519-sha256@libssh.org

//修改ssh的配置文件 /etc/ssh/sshd_config 添加上列行

//重启ssh服务

cd /etc/init.d

sudo ./ssh restart