Adjust Makefile

Makefile

@@ -2,7 +2,18 @@ localpath = scripts
 path = ~/.shellrc/bin/scripts
 find := $(shell { command -v gfind || command -v find; } 2>&-)
 
-all: install
+help: ## Display this help.
+	@awk 'BEGIN { \
+		FS = ":.*##"; \
+		printf "\nUsage:\n  make \033[36m<target>\033[0m\n\nTargets:\n" \
+	} \
+	/^[a-zA-Z_-]+:.*?##/ { \
+		printf "  \033[36m%-10s\033[0m %s\n", $$1, $$2 \
+	} \
+	END { \
+		print \
+	}' \
+	$(MAKEFILE_LIST)
 
 mkdir:
 	@mkdir -p $(path)
@@ -10,7 +21,7 @@ mkdir:
 rmdir:
 	@rmdir $(path) 2>&-; :
 
-install: mkdir
+install: mkdir  ## Create links to this scripts.
 	@$(find) $(localpath) \
 		-maxdepth 1 \
 		-type f \
@@ -28,7 +39,7 @@ rmlinks:
 		-exec basename {} \; \
 	| xargs -IF rm -fv $(path)/F
 
-uninstall: rmlinks rmdir
+uninstall: rmlinks rmdir  ## Uninstall scripts.
 
 clean: uninstall