ln -s make /usr/bin/gmake : The reason we create the gmake symlink is that Tripwire will only install if the symlink is present. It may be safely removed after installation. gmake release : This command creates the Tripwire binaries. cp install.{sh,cfg} . : These are copied to the main Tripwire directory so that the script can be used to install the package. cp policy/*.txt /usr/share/doc/tripwire : This command installs the documentation.