# Filesystem "shell" utilities

Words in this unit are a diverse collection of useful FS-related tools that
are generally used directly by the operator (rather than as a library). In
other words, it's a collection of tools too fancy for [fs/core].

## API

copyfile ( dstid dstfs srcid srcfs -- )
  Copy file "srcid" residing in FS "srcfs" to existing file "dstid" residing in
  FS "dstfs".

copydir ( dstid dstfs srcid srcfs -- )
  Recursively copy directory "srcid" residing in FS "srcfs" to existing
  directory "dstid" residing in FS "dstfs".

  When ran on a destination that already exists, it creates new files/dirs as
  needed and when a file already exists, it is overwritten.

listdir ( path -- )
  Lookup specified path, then print all children of that path, one per line,
  with that path as a prefix (so, we print full absolute paths).

  For each line, either the size of the file or "[DIR]" is printed text to it.

  Children can be files and/or subdirectories.
