Richard Lucas' Blog

CS stuff and more...

Useful CLI commands

Some CLI Commands that I’ve found useful:Viewing processes and killing them$ lsof -Pi | grep LISTEN Displays processes running and ports The PID is the second number (2nd column from left) $ kill......

Posted by Richard Lucas on Aug 14 2015

Resizing image with imagemagick

Quick one-linerUsing imagemagick to resize an image, keep it’s proportion (i.e. 4 x 3 ), and place it in the middle with a white background: 1convert input.png -resize 1280x800 -background white -g......

Posted by Richard Lucas on Aug 11 2015

Mocking out the Request module in Node.js for Testing

So, recently I needed to write a test that required that I mock the request module out as I wanted to pass a specific error code back to the response handler and do something different with it. In......

Posted by Richard Lucas on Aug 10 2015

Importing CSV in Postgres

Log into the database from the terminal:1$ psql database_name Create a new table:123456789# CREATE TABLE table_name(column_name data_type, column_name2 data_type, etc);example:# CREATE TABLE trips(......

Posted by Richard Lucas on Dec 10 2013

Installing Postgres on Linux Mint

###A Quick Guide Open up the terminal:1$ sudo apt-get install postgresql Installs Postgresql. This will take a few minutes. Next:1$ sudo su - postgres This logs you into the database as the postgr......

Posted by Richard Lucas on Dec 1 2013