There is no command: dired-up-directory

[triilman25]

[troglobit]

Dunno what version you're using, but this little distribution of the OpenBSD Mg added dired-up-directory in d52324c.

As a general rule when reporting issues with Open Source projects, please include information about the program you are using, like version.

[triilman25]

I am using the new one mg-3.7. not only this command but also the shortcut ^.

[troglobit]

Ah sorry, my bad! The dired-up-directory command was added after the 3.7 release. So, either build from source or wait for the 3.8 release, which is on my TODO list.