portgrep is a tool that can help to analize existing FreeBSD ports and how they use different variables and etc.

It is similar to this command:

find /usr/ports/ -name Makefile -exec grep -H STRING {} \;Installationfetch current version of portgrep extract it change directory make make install UsageFor example I want to know were and how Boost's shared_prt library is used:

portgrep Makefile shared_ptrOutput:

Found in: /usr/ports/devel/libopkele/Makefile
BUILD_DEPENDS= ${LOCALBASE}/include/boost/shared_ptr.hpp:${PORTSDIR}/devel/boost-libs

Found in: /usr/ports/devel/monotone/Makefile
BUILD_DEPENDS= ${LOCALBASE}/include/boost/shared_ptr.hpp:${PORTSDIR}/devel/boost-libs \

...