all:
@echo $(shell date)
@$(shell sleep 3)
@date > /tmp/sample.txt
@$(shell sleep 3)
@echo $(shell date)
@$(shell sleep 3)
@cat /tmp/sample.txt
YWxsOgoJQGVjaG8gJChzaGVsbCBkYXRlKQoJQCQoc2hlbGwgc2xlZXAgMykKCUBkYXRlID4gL3RtcC9zYW1wbGUudHh0CglAJChzaGVsbCBzbGVlcCAzKQoJQGVjaG8gJChzaGVsbCBkYXRlKQoJQCQoc2hlbGwgc2xlZXAgMykKCUBjYXQgL3RtcC9zYW1wbGUudHh0Cg==