imam-san

How to Install GO Lang on CentOS / Amazon Linux?

sudo wget https://storage.googleapis.com/golang/go1.4.2.linux-amd64.tar.gz
tar -xzf go1.4.2.linux-amd64.tar.gz 
export GOROOT=PATH_WHERE_YOU_EXTRACT_GO
export PATH=$PATH:$GOROOT/bin 
export GOBIN=$GOROOT/bin 
mkdir ~/golang/ 
export GOPATH=~/golang/ 

imam-san

PSQL

Magic words:

psql -U postgres

Some interesting flags (to see all, use -h):

• -E: will describe the underlaying queries of the \ commands (cool for learning!)
• -l: psql will list all databases and then exit (useful if the user you connect with doesn't has a default database, like at AWS RDS)