@ryo @charliebrownau @furgar None of the BSDs ever used the GNU core utils. They are all rewrites of the original BSD utilities. And on Linux, the most common alternative is busybox. Alpine uses it, and there are a few very small distributions that are anti-GNU and don't use anything GNU at all. And I thing there is a portable version of the Plan 9 core utils as well. Anyway, I don't care very much. Generally, if you're using shell scripting for speed, you're doing something wrong.