Example makefile with simplest usage for use with most jobs

Makefile

##########################################################
#
# Example makefile
#
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# The top item will run with just `make`, same as `make all`
# This will trigger dependencies, then run
all: silent dependency1 variable environment
	echo Everything has been made 	# this line will be printed

# An @ sign at the beginning will not print the command
silent:
	@echo ^^^ no command printed above me

# This shows linked dependencies
dependency1: dependency2
	@echo executing number one

# Must run before dependency1
dependency2:
	@echo executing dependency of number one

# This is how to use a variable. Run this on its own with `make variable`
VAR:=variable
C:=plane
variable:
	@echo executing $(VAR) # You must wrap in () or make will just use the first letter
	@echo This is not the right $CAR # like this

# This works for environment variables as well. `make environment`
environment:
	echo $(PATH)

# Need to pass variables into a script? No problem, export them
NOTEXPORTED:=this is not blank
export EXPORTED:=exports
exported:
	./export.sh

# This will fail out of make. Run with `make fail`, or add as a dependency somewhere
fail:
	@echo this will fail
	@exit 1