sysutils/random_run 2.19 OpenBSD

rr (random run) runs a command with randomized arguments.

Basically,

$ rr mpv *.mp4 will give you a true shuffle, that doesn't play the same file twice.

There are lots more options:

$ rr xv -nolimit -- * allows you to specify options that won't be jumbled.

$ rr -n 500 -r -x '.*.pdf' xv -nolimit -- * will run xv several times on all files below the current directory except those matching '.*.pdf', limiting each run to 500 parameters.

See the manpage for details.