Make list targets [memo]

Here is small note about the target I put in every Makefile I have.

The target is called `list` and looks like this:

.PHONY: list
list:
    @$(MAKE) -pRrq -f $(lastword $(MAKEFILE_LIST)) : 2>/dev/null | awk -v RS= -F: '/^# File/,/^# Finished Make data base/ {if ($1 !~ "^[#.]") {print $1}}' | sort | egrep -v -e '^[^[:alnum:]]' -e '^$@$'

It prints list of all targets defined in your Makefile.

Took it from

this brilliant stackoverflow answer