To make things easy to follow, there are a number of conventions used throughout the book. Following are some examples:
./configure --prefix=/usr
This form of text is designed to be typed exactly as seen unless otherwise noted in the surrounding text. It is also used in the explanation sections to identify which of the commands is being referred to.
install-info: unknown option `--dir-file=/mnt/lfs/usr/info/dir'
This form of text (fixed width text) is showing screen output, probably as the result of commands issued and is also used to show filenames such as /etc/lilo.conf
Emphasis
This form of text is used for several purposes in the book but mainly to emphasize important points or to give examples as to what to type.
http://www.linuxfromscratch.org/
This form of text is used for hypertext links, both within the book and to external pages such as HowTo's, download locations, websites, etc.
cat > $LFS/etc/group << "EOF" root:x:0: bin:x:1: ...... EOF
This type of section is used mainly when creating configuration files. The first command (in bold) tells the system to create the file $LFS/etc/group from whatever is typed on the following lines until the sequence EOF is encountered. Therefore, this whole section is generally typed as seen.