Shell / SSH WordPress Installer

wp-installer.sh

#!/bin/bash -e
clear

echo ""
echo "============================================="
echo "#                                           #"
echo "#     Welcome to the WordPress Installer    #"
echo "#                                           #"
echo "============================================="
echo ""

read -e -p "Database Name: " db_name
read -e -p "Database User: " db_user
read -e -p "Database Password: " db_pass
echo ""
read -e -p "Ready to Rock? (y/n): " run

if [ "$run" == n ]
then
    echo "Bye..."
    exit
else
    echo ""
    echo "============================================"
    echo "#           Installing WordPress           #"
    echo "============================================"
    echo ""
    # Download, extract, and delete the latest, compressed version of WordPress
    wget http://wordpress.org/latest.tar.gz
    tar -xzvf latest.tar.gz --strip-components=1
    rm latest.tar.gz

    # Let's copy the first part of wp-config-sampe.php and start piecing together wp-config.php
    grep -F -B1015 -A1 "@since 2.6.0" wp-config-sample.php > wp-config.php

    # Set database details with perl find and replace
    perl -pi -e "s/database_name_here/$db_name/g" wp-config.php
    perl -pi -e "s/username_here/$db_user/g" wp-config.php
    perl -pi -e "s/password_here/$db_pass/g" wp-config.php

    # Use the WordPress.org secret-key service to download a set of secret keys
    # Save it in a file named keys.salt
    wget https://api.wordpress.org/secret-key/1.1/salt/ -O keys.salt

    # Append the authorization keys to the wp-config.php file
    cat keys.salt >> wp-config.php
    # Get rid of the keys file
    rm keys.salt

    # Finish building the config file by appending the last part of wp-config-sample.php
    grep -F -B1 -A1015 "/**#@-*/" wp-config-sample.php >> wp-config.php

    echo ""
    echo "============================================"
    echo "#            Hardening WordPress           #"
    echo "============================================"
    echo ""
    # Set the appropriate directory permissions
    find -type d -exec chmod 755 {} \;
    # Set the appropriate file permissions
    find -type f -exec chmod 644 {} \;
    # Set wp-config.php to 440. This is commented out, because it may break some configurations. 
    # Uncomment at your own risk.
    # chmod 440 wp-config.php

    echo ""
    echo "============================================"
    echo "#                Cleaning Up               #"
    echo "============================================"
    echo ""
    # Deletes the currently-running script (self)
    rm ${0##*/}
    # Get rid of the crap default themes...leaving one for fallback
    rm -rf wp-content/themes/twentyfourteen || true
    rm -rf wp-content/themes/twentythirteen || true
    # Get rid of bogus plugins
    rm -rf wp-content/plugins/akismet || true
    rm wp-content/plugins/hello.php || true
    clear

    echo ""
    echo "============================================"
    echo "#     WordPress installation complete!     #"
    echo "#                   ---                    #"
    echo "#       Stay classy, WordPress nerds       #"
    echo "============================================"
    echo ""
fi

To run this installer:

1. Log into your server via SSH
2. Create a database and make note of the database name and user
3. Create / navigate to your desired WordPress root directory (for example, /var/www/html/blog)
4. Copy and paste the attached snippet into your SSH client.
5. Follow the on-screen instructions.

wget https://gist.githubusercontent.com/rnevius/2c81c22bc7e2620a9f9b/raw/wp-installer.sh && chmod 555 wp-installer.sh && ./wp-installer.sh

Also, if you'd rather input your database info in the WordPress installer, rather than the shell, you can use the following (completely avoids using the above shell script):

wget http://wordpress.org/latest.tar.gz && tar -xzvf latest.tar.gz --strip-components=1 && rm latest.tar.gz && rm -rf wp-content/themes/twentyfourteen ; rm -rf wp-content/themes/twentythirteen ; rm -rf wp-content/plugins/akismet ; rm -rf wp-content/plugins/hello.php ; find -type d -exec chmod 755 {} \; && find -type f -exec chmod 644 {} \;

The above snippet does everything the shell script does, minus the configuration of wp-config.php.