Tao of Mac

Dec 6th 2004 · 1 min read · #build #cli #make

make

make is the classic build utility. Useful snippet for batch conversion of PNG to JPG:

JPGS = $(shell ls *.png | sed 's/\(.*\.\)png/\1jpg/' | xargs echo)

%.jpeg: %.png
    /sw/bin/mogrify -format jpeg -resize 720x180! -quality 92 -sharpen 1 $<

%.jpg: %.jpeg
    mv $< `echo $< | sed 's/\(.*\.\)jpeg/\1jpg/'`

all: $(JPGS)