add: new pipeline to log parser

27-functional-programming/log-parser-exp/Makefile

@@ -0,0 +1,25 @@
+SHELL := /bin/bash
+LINES = echo -e ">> log.txt has $$(wc -l log.txt | cut -f1 -d' ') lines"
+
+ifeq ($(n),)
+	n := 18
+endif
+
+s:
+	time go run . < log.txt
+
+r:
+	go run . < log.txt
+
+# make n=18
+load: restore
+	@echo "enlarging the file with itself, please wait..."
+	@for i in {1..$(n)}; do awk 1 log.txt log.txt > log_.txt; mv log_.txt log.txt; rm -f log_.txt; done
+	@$(LINES)
+
+restore:
+	@$(LINES)
+	git checkout log.txt
+	
+lines:
+	@$(LINES)