There are a number of text conventions used throughout this book.

CodeInText: Indicates code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles. Here is an example: "Add the necessary system path variables in the ~/.profile or ~/.bashrc file"

A block of code is set as follows:

export HADOOP_HOME=/opt/hadoop
export HADOOP_CONF_DIR=/opt/hadoop/conf
export HIVE_HOME=/opt/hive
export HIVE_CONF_DIR=/opt/hive/conf
export PATH=$PATH:$HIVE_HOME/bin:$HADOOP_HOME/
bin:$HADOOP_HOME/sbin

Any command-line or beeline interactive input or output is written as follows:

$hive 
$beeline -u "jdbc:hive2://localhost:10000"

Bold: Indicates a new term, an important word, or words that you see onscreen. For example, words in menus or dialog boxes appear in the text like this. Here is an example: "Select Preference from the interface."