finish examples

slides/makefiles/examples/.gitignore

@@ -0,0 +1 @@
+*

slides/makefiles/examples/check

@@ -0,0 +1,8 @@
+CHECKER = command -v
+.PHONY: check
+check:
+	$(CHECKER) fortune >/dev/null
+	$(CHECKER) cowsay >/dev/null
+
+file: | check
+	fortune | cowsay > $@

slides/makefiles/examples/pats

@@ -0,0 +1,18 @@
+IMAGES = $(wildcard jpgs/*)
+COL = $(patsubst jpgs/%,collection/%,$(IMAGES))
+
+.PHONY: help
+help:
+	$(info try 'show' or 'output')
+.PHONY: show
+show:
+	$(info IMAGES is $(IMAGES))
+	$(info Col is $(COL))
+
+.PHONY: output
+output: $(COL)
+
+collection/%.jpg: jpgs/%.jpg
+	mkdir -p $(@D)
+	cp $< $@
+

slides/makefiles/examples/rules

@@ -0,0 +1,15 @@
+CP = ln -f
+
+output: pngs/ldap.png
+
+jpgs/ldap.jpg: ../../ldap/ldap.jpg
+	mkdir -p $(dir $@)
+	$(CP) $< $@
+
+pngs/%.png: jpgs/%.jpg
+	mkdir -p $(dir $@)
+	$(info making $(@F) in $(@D))
+	magick $< $@
+
+clean:
+	$(RM) -r pngs jpgs

slides/makefiles/examples/vars

@@ -0,0 +1,10 @@
+include /etc/os-release
+DAY != date +%d
+MESSAGE != fortune -s
+
+motd_$(DAY):
+	$(info Hello $(USER))
+	$(info Placing message:)
+	echo "Welcome to $(NAME)" > $@
+	echo $(MESSAGE) >> $@
+