Merge 824bd5295d into 10872e02d1

add docker init command to docker cheatsheet

README.md

@@ -95,6 +95,10 @@ Feel free to take a look. You might learn new things. They have been designed to
 - [Redis](databases/redis.sh)
   </details>
 
+#### PostgreSQL
+
+- [PostgreSQL](databases/postgresql.sh)
+
 ### 🔧 Tools
 
 <details>

databases/postgresql.sh

@@ -0,0 +1,16 @@
+# *****************************************************************************
+# BASICS
+# *****************************************************************************
+
+sudo -u postgres psql # PSQL command line interface in full admin mode
+
+# Anything inside the angular brackets <> will be your variables
+
+sudo -u postgres createuser <username> # Create user
+sudo -u postgres createdb <dbname> # Create database
+
+# Setting a password for a user
+sudo -u postgres psql
+alter user <username> with encrypted password '<password>';
+
+grant all privileges on database <dbname> to <username>; # grant privileges on a database to a user

languages/C.txt

@@ -149,6 +149,7 @@ Operators
   ^=   	bitwise exclusive or and store
   |=   	bitwise or and store
   ,    	separator as in   ( y=x,z=++x )
+  ;     statement terminator.
 
 
 Operator precedence

tools/docker.sh

@@ -2,7 +2,7 @@
 # DOCKER
 ##############################################################################
 
-
+docker init                                 # Creates Docker-related starter files 
 docker build -t friendlyname .              # Create image using this directory's Dockerfile
 docker run -p 4000:80 friendlyname          # Run "friendlyname" mapping port 4000 to 80
 docker run -d -p 4000:80 friendlyname       # Same thing, but in detached mode