LFS Commands is a tarball containing files which list the installation commands for the packages installed in this book.
These files can be used to quickly find out which commands have been changed between the different LFS versions. Download the lfs-commands tarball for this book version and the previous book version and run a diff on the files. That way it is possible to see which packages have updated installation instructions, so any scripts you may have can be modified, or you can reinstall a package if you think that necessary.
A side effect is that these files can be used to dump to a shell and install the packages, though some files need to be modified (where certain settings can't be guessed and depend on user preference or system hardware). Keep in mind, please, that these files are not thoroughly checked for correctness. There may be bugs in the files (since they are manually created at the moment) so do check them and don't blindly trust them.
If you decide to use the commands to automatically install a package and it doesn't work, try reading the book's instructions instead before you ask for help on the mailinglist.
The lfscommands can be downloaded from http://ftp.linuxfromscratch.org/lfs-commands/ or ftp://ftp.linuxfromscratch.org/lfs-commands/ .