Move a file, and create the destination directory if it doesn't exist

mvp.sh

#!/bin/sh

# Usage: mvp <src> <dest>

# Move a file, and create the destination directory if it doesn't exist

__dirname() {
    # Usage: dirname "path"

    # https://github.com/dylanaraps/pure-sh-bible

    # If '$1' is empty set 'dir' to '.', else '$1'.
    dir=${1:-.}

    # Strip all trailing forward-slashes '/' from
    # the end of the string.
    #
    # "${dir##*[!/]}": Remove all non-forward-slashes
    # from the start of the string, leaving us with only
    # the trailing slashes.
    # "${dir%%"${}"}": Remove the result of the above
    # substitution (a string of forward slashes) from the
    # end of the original string.
    dir=${dir%%"${dir##*[!/]}"}

    # If the variable *does not* contain any forward slashes
    # set its value to '.'.
    [ "${dir##*/*}" ] && dir=.

    # Remove everything *after* the last forward-slash '/'.
    dir=${dir%/*}

    # Again, strip all trailing forward-slashes '/' from
    # the end of the string (see above).
    dir=${dir%%"${dir##*[!/]}"}

    # Print the resulting string and if it is empty,
    # print '/'.
    printf '%s\n' "${dir:-/}"
}

mvp() {
  dest_dirname="$(__dirname "${2:?}")"
  [ $? -ne 0 ] && return 1
  
  if [ -n "$dest_dirname" -a ! -d "$dest_dirname" ]; then
    mkdir -p "$dest_dirname"
    [ $? -ne 0 ] && return 1
  fi  
  
  mv "${1:?}" "$dest"
}