bp78_linux.tar.gz, and store it in your home directory.
bp78_linux.tar.gz, and extract the files by typing
gunzip bp78_linux.tar.gz | tar xfv -
.cshrc, .bshrc, or .kshrc, depending on the shell that you use:
alias bp '$HOME/BProlog/bp'
This enables you to start B-Prolog from any working directory.
bp in the BProlog directory.