linuxTools.txt

Ubuntu 18.04 LTS install hardware requirements:
- 2gz dual core processor
- 2 GB mem
- 25 GB hard drive
- DVD/USB
- internet

diff -r dir1 dir2 > out.txt

apt list --installed

To install ssh:
	sudo apt update
	sudo apt-get install openssh-server
	service sshd start
        ssh-keygen	
        ssh-copy-id 127.0.0.1	
        ssh 127.0.0.1
        
To install Ansible:
	$ sudo apt-get update
	$ sudo apt-get install software-properties-common
	$ sudo apt-add-repository ppa:ansible/ansible
	$ sudo apt-get update
	$ sudo apt-get install ansible        

To run a *.yml file:
       ansible-playbook -K playbook.yml --list-hosts
       
cd /etc/ansible
sudo vi ansible.cfg

sudo apt-get install virtualbox-guest-dkms virtualbox-guest-utils virtualbox-guest-x11

sudo apt install virtualbox-guest-x11-hwe
VBoxClient --clipboard

To add myself to vboxsf:
edit /etc/group
    vboxsf:x:120:harriettxing
sudo adduser $USER vboxsf
# need restart

To install mysql:
	sudo apt update
	sudo apt install mysql-server
	sudo mysql_secure_installation
	sudo mysql
	mysql> SELECT user,authentication_string,plugin,host FROM mysql.user;
	mysql> ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY 'password';
	mysql> FLUSH PRIVILEGES;
	mysql> SELECT user,authentication_string,plugin,host FROM mysql.user;
	mysql> exit
	mysql -u root -p
	

To remove mysql:
	sudo apt-get purge mysql-apt-config
	sudo apt-get remove mysql-apt-config
	sudo apt-get remove --purge mysql*
	sudo apt-get purge mysql*
	sudo apt-get autoremove
	sudo apt-get autoclean
	sudo apt-get remove dbconfig-mysql
	sudo apt-get dist-upgrade

Or
	sudo apt-get purge mysql-server mysql-client mysql-common mysql-server-core-* mysql-client-core-*
	sudo rm -rf /etc/mysql /var/lib/mysql
	sudo apt-get autoremove
	sudo apt-get autoclean
	
To enable InnoDB encryption:

        cd /etc/mysql/conf.d
        sudo vi mysql.conf
        add:
		[mysqld]
		plugin_dir=/usr/lib/mysql/plugin/
		early-plugin-load=keyring_file.so
	sudo /etc/init.d/mysql restart                 
         
To make table name case insensitive:
        update /etc/mysql/mysql.cnf

[mysqld]
lower_case_table_names = 1

sudo /etc/init.d/mysql restart

To reset root password:
	sudo /etc/init.d/mysql stop
	sudo mkdir /var/run/mysqld
	sudo chown mysql:mysql /var/run/mysqld
	sudo mysqld_safe --skip-grant-tables &
	mysql -uroot
	use mysql;
	update user set authentication_string=PASSWORD("Krunch-Moad-34") where User='root';
	flush privileges;
	quit;
	sudo /etc/init.d/mysql stop
	sudo /etc/init.d/mysql start
	mysql -u root -p
	
To install NGINX:
        sudo apt-get update
        sudo apt-get install nginx

sudo service nginx stop
sudo service nginx start
sudo service nginx restart
sudo update-rc.d nginx defaults


gunzip --keep httpd-2.4.33.tar.gz
tar -C apache -zxvf httpd-2.4.33.tar.gz

To install apach httpd server:
	sudo apt-get update
	sudo apt install net-tools
	sudo apt-get install apache2
	sudo apache2ctl configtest
	netstat -an | more
	sudo /etc/init.d/apache2 stop
	sudo /etc/init.d/apache2 start
	sudo /etc/init.d/apache2 restart
	sudo systemctl restart apache2

sudo nano index.html
for Ubuntu 18.04 LTS
sudo vi /etc/apache2/sites-available/000-default.conf
default apache document root:  /var/www/html

To add apache to vboxsf:
sudo usermod -a -G vboxsf www-data

To setup https on apache:
# dev.glc-md.com is the hostname
	openssl req –new –newkey rsa:2048 –nodes –keyout dev.glc-md.com.key –out dev.glc-md.com.csr
# VirtualBoxUbuntu is the host name
	openssl req –new –newkey rsa:2048 –nodes –keyout VirtualBoxUbuntu.key –out VirtualBoxUbuntu.csr

	
To install php 7.1:
	sudo apt-get install software-properties-common
	sudo add-apt-repository ppa:ondrej/php
 #      sudo add-apt-repository ppa:ondrej/apache2
	sudo apt update
	sudo apt-get install php7.1 libapache2-mod-php7.1 php7.1-mcrypt php7.1-cli php7.1-xml php7.1-zip php7.1-mysql php7.1-gd php7.1-imagick php7.1-recode php7.1-tidy php7.1-xmlrpc
        sudo apt-get install php7.1-mbstring
	sudo nano /etc/php/7.1/apache2/php.ini
		file_uploads = On
		allow_url_fopen = On
		memory_limit = 256M
		upload_max_filesize = 100M
		max_execution_time = 360
		date.timezone = America/Chicago
	lookup Apache2 /etc/apache2/mods-available/dir.conf
		<IfModule mod_dir.c>
		     DirectoryIndex index.html index.cgi index.pl index.php index.xhtml index.htm
		</IfModule>
	sudo systemctl restart apache2.service
	sudo nano /var/www/html/phpinfo.php
	
To install and configure php 7 with NGINX:
	sudo add-apt-repository ppa:ondrej/php
	sudo apt-get install software-properties-common
	#sudo apt-get install python-software-properties
	sudo apt-get update
	# sudo apt-get -y install unzip zip nginx php7.2 php7.2-mysql php7.2-fpm php7.2-mbstring php7.2-xml php7.2-curl
	sudo apt-get -y install unzip zip  php7.2 php7.2-mysql php7.2-fpm php7.2-mbstring php7.2-xml php7.2-curl
	
	cd /etc/nginx/sites-availablels 
	sudo vi default

        # pass PHP scripts to FastCGI server
        #
        location ~ \.php$ {
        #       include snippets/fastcgi-php.conf;
                include /etc/nginx/fastcgi.conf;
        #
        #       # With php-fpm (or other unix sockets):
                fastcgi_pass unix:/var/run/php/php7.2-fpm.sock;
        #       # With php-cgi (or other tcp sockets):
        #       fastcgi_pass 127.0.0.1:9000;
        }
	
	sudo systemctl restart php7.2-fpm
	sudo systemctl restart nginx	

To install Composer:
        php -r "copy('https://getcomposer.org/installer', 'composer-setup.php');"
	php -r "if (hash_file('SHA384', 'composer-setup.php') === '544e09ee996cdf60ece3804abc52599c22b1f40f4323403c44d44fdfdd586475ca9813a858088ffbc1f233e9b180f061') { echo 'Installer verified'; } else { echo 'Installer corrupt'; unlink('composer-setup.php'); } echo PHP_EOL;"
	php composer-setup.php
	php -r "unlink('composer-setup.php');"
	php composer.phar
	sudo apt install composer
	
To install Laravel:
        add $HOME/.config/composer/vendor/bin to $PATH
        laravel new blog
	
To install python:
        sudo add-apt-repository ppa:jonathonf/python-3.6
        sudo apt-get update
        sudo apt-get install python3.6

	$ sudo apt-get install python-pip python-dev build-essential 
	$ sudo pip install --upgrade pip 
	$ sudo pip install --upgrade virtualenv 
	
To install git:
	sudo apt -y install git
	git --version
	sudo apt -y install make libssl-dev libghc-zlib-dev libcurl4-gnutls-dev libexpat1-dev gettext unzip
	navigate to https://github.com/git/git/tree/master
	Click on "Branch:Master" -> tags -> the latest none rc version
	-> Clone or download -> Download Zip -> Copy link address
	wget https://github.com/git/git/archive/v2.18.0.zip
	unzip v2.18.0.zip
	cd git-2.18.0
	make prefix=/usr/local all
	sudo make prefix=/usr/local install
	git --version
	git config --global user.name "Your Name Here"
	git config --global user.email "youremail@address.here"

To install Atom:
	sudo add-apt-repository ppa:webupd8team/atom
	sudo apt-get update
	sudo apt-get install atom

To install wordpress:
	cd /var/www/html
	wget https://wordpress.org/latest.tar.gz
	tar -xzvf latest.tar.gz

To install curl:
        sudo apt install curl
        
To install Node.js:
	curl -sL https://deb.nodesource.com/setup_8.x | sudo -E bash -
	sudo apt-get install -y nodejs
	sudo apt-get install -y build-essential
	node -v
	sudo npm install npm --global

To install MongoDB:
	sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv 9DA31620334BD75D9DCB49F368818C72E52529D4
	echo "deb [ arch=amd64 ] https://repo.mongodb.org/apt/ubuntu bionic/mongodb-org/4.0 multiverse" | sudo tee /etc/apt/sources.list.d/mongodb-org-4.0.list
	sudo apt-get update	
	sudo apt-get install -y mongodb-org
	sudo service mongod start
 	more /var/log/mongodb/mongod.log | grep 'waiting for connections on port 27017'
	mongo --host 127.0.0.1:27017

To install NodeJS MongoDB driver:
	sudo npm install mongodb

To install Java:
        sudo apt-get update 
        sudo apt-get upgrade
	sudo apt-get install default-jdk
	sudo apt-get install software-properties-common
	sudo add-apt-repository ppa:webupd8team/java
	sudo apt-get update
	sudo add-apt-repository ppa:linuxuprising/java
	sudo apt update
	sudo apt install oracle-java10-installer
	sudo apt install oracle-java10-set-default
	java -version

For Oracle Java 10, see a different PPA: https://www.linuxuprising.com/2018/04/install-oracle-java-10-in-ubuntu-or.html
 More info: https://launchpad.net/~webupd8team/+archive/ubuntu/java
	
To search for a string in textfiles:
sudo apt-get install searchmonkey

To copy all contents of a directory to another:
cp -a /source/. /dest/


Useful commands:
sudo apt install net-tools

uname -a
ifconfig
ip addr show
ip addr show  DeviceName
/dev/sda1           26G  8.0G   16G  34% /

service udev status
service udev start
service udev stop
systemctl status udev

du -sh home

netstat -tulpn
ps aux | grep udev
top
htop ???
ls /mnt
mount /dev/sda2 /mnt
mount
less /etc/fstab
man <command>

List all directories:
ls -d */

grep -rnw . -e 'test string'

history
free -m