Conventions

In this book, you will find a number of text styles that distinguish between different kinds of information. Here are some examples of these styles and an explanation of their meaning.

Code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles are shown as follows: "Open the terminator and type sudo apt install zsh to install zsh, as shown in."

A block of code is set as follows:

case ${CMD} in
    publicip)
        print_public_ip
        ;;
    ip)
        IFACE=$(getarg iface $@)
        print_ip $IFACE
        ;;
    *)
        echo "invalid command"
esac

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

sh -c "$(curl -fsSL https://raw.githubusercontent.com/robbyrussell/oh-my-zsh/master/tools/install.sh)"

New terms and important words are shown in bold. Words that you see on the screen, for example, in menus or dialog boxes, appear in the text like this: "Go to shell and enable Open new tab in current directory."