Not a bug: There is no “**” in POSIX shell or C either. In general, the usefulness of this operator is rather limited in the scope of shell arithmetics (either mksh or POSIX), but I’ll keep this open as a wishlist item in case someone is bored or something. (No -lm allowed.)
** Changed in: mksh Importance: Undecided => Wishlist -- You received this bug notification because you are a member of mksh Mailing List, which is subscribed to mksh. Matching subscriptions: mkshlist-to-mksh-bugmail https://bugs.launchpad.net/bugs/1679426 Title: mksh arithmetic doesn't support bash ** Status in mksh: New Bug description: mksh R54 (built from source) doesn't support bash-style $((3**4)). all the other arithmetic operators appear to be there. To manage notifications about this bug go to: https://bugs.launchpad.net/mksh/+bug/1679426/+subscriptions