No school like the old school. PSP homebrew developer Darksidious has relesed the latest version of PspDos, the DOS- type command line interface for the Sony handheld. This version includes three new DOS commands you can use. Here's the changelog for PspDos v0.2:

Hi all voila I suggest the 0.2 version of pspdos
The new release has days are:
-- Edit [path] / / edit a file using a luaprog 0.3
-- Rename [file] [other] / / rename the file by other
-- Exe [file. Psp] / / the file. Psp is the equivalent of batch for pc

The commands you can use from a file psp are:
-- Exit
-- Deldir
-- USB
-- Del
-- Mkdir
-- Copy
-- Exe / / only file lua
-- CD

Voila for the next release will add
-- Launching prx