Merge 824bd5295d into 88e5be6e4b

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/javascript.js

@@ -95,9 +95,3 @@ arr.reduce(callback[, initialValue])                 // Apply a function against
 arr.reduceRight(callback[, initialValue])            // Apply a function against an accumulator and each value of the array (from right-to-left) as to reduce it to a single value.
 arr.some(callback[, initialValue])                   // Returns true if at least one element in this array satisfies the provided testing function.
 arr.values()                                         // Returns a new Array Iterator object that contains the values for each index in the array.
-
-// String methods
-String.charAt(index)                                 // Returns the character at the specified index in a string.
-String.indexOf(character)                            // Returns the index of the first occurrence of a specified value in a string.
-String.substring(starting_index, ending_index)       // Returns a new string that is a subset of the original string.
-String.substring(starting_index)                     // Returns a substring from starting index to last index of string.

tools/ubuntu.sh

@@ -21,7 +21,6 @@ cat /proc/<process_id>/maps   # Show the current virtual memory usage of a Linux
 ip r # Display ip of the server
 
 lsof -i :9000 # List process running on port 9000
-kill -9 $(lsof -t -i:PORT) # Kill the process running on whichever port specified
 
 journalctl -u minio.service -n 100 --no-pager # List last 100 logs for specific service