Add linux notes

linux/mysql_commands.txt

@@ -0,0 +1,18 @@
+install:
+sudo apt install mysql-server
+sudo apt install libmysqlclient-dev
+
+user creation:
+CREATE USER 'socialstore' IDENTIFIED BY 'socialstorepassword';
+SELECT user FROM mysql.user;
+
+database creation:
+CREATE DATABASE StoreDatabase;
+GRANT ALL PRIVILEGES ON StoreDatabase.* TO socialstore;
+
+database management:
+USE StoreDatabase;
+SHOW TABLES;
+
+installation:
+