Makefile запуск и остановка приложения по PID

Makefile

.PHONY: deploy setup start stop

LASTBUILD := `cd ../builds && ls -1t | head -1`
STAMP := `date +%s`
BUILD := `date -u '+%Y_%m_%d-%I_%M_%S'`
PIDFILE := ./bin/app.pid

ifneq ("$(wildcard $(PIDFILE))","")
	PID=$(shell cat $(PIDFILE))
endif

default: deploy

start:
ifndef PID
	@echo Starting...
	@$(shell nohup ./bin/app.bin -config=config.json -stderrthreshold=INFO -v=2 > ../logs/current.log 2>&1 & echo $$! > $(PIDFILE))
	@echo PID=$(shell cat $(PIDFILE))
else
	@echo PID='$(PID)'
endif

stop:
ifdef PID
	@echo PID=$(PID) Stopping...
	@rm $(PIDFILE)
	@echo "================END================" >> ../logs/current.log
	@echo $(BUILD) >> ../logs/current.log
	@cp ../logs/current.log ../logs/$(BUILD).log
	@echo > ../logs/current.log
else
	@echo It is stopped
endif

deploy:
	unzip ../builds/$(LASTBUILD) -d ../.tmp/$(STAMP)
	rsync --progress --partial --force -avz --exclude '.pid' --exclude 'downloads' --exclude 'config' ../.tmp/$(STAMP)/ ../current

setup:
	mkdir -p ../.tmp
	mkdir -p ../logs
	mkdir -p ../builds
	mkdir -p ../shared
	mkdir -p ../current/bin
	mkdir -p ../shared/config
	mkdir -p ../shared/downloads
	ln -s ../shared/config/ config
	ln -s ../shared/downloads/ downloads