alt Hacker NewsThey are not the same. For example, `[[` apparently works on Alpine's ash but not on Debian's dash. BusyBox ash has some bash compatibility options enabled in Alpine.
It's ironic that a post about shell differences glosses over this. Maybe not surprising that slop is sloppy.
The post is not about shell differences, there's too many of them. It's about portability.
I want users to test instead of rote memorizing. And I'm giving them tools:
Don't trust any blogger, use science.