Command line batch image cropping tool
In Linux you can use mogrify -crop {Width}x{Height}+{X}+{Y} +repage image.png for CLI image manipulation
os-agnostic
OS detecting makefile
There are many good answers here already, but I wanted to share a more complete example that both: doesn’t assume uname exists on Windows also detects the processor The CCFLAGS defined here aren’t necessarily recommended or ideal; they’re just what the project to which I was adding OS/CPU auto-detection happened to be using. ifeq ($(OS),Windows_NT) … Read more
How do you convert an entire directory with ffmpeg?
For Linux and macOS this can be done in one line, using parameter expansion to change the filename extension of the output file: for i in *.avi; do ffmpeg -i “$i” “${i%.*}.mp4”; done