An option, codice 3, will recursively descend any matching subdirectories to compare files between directories. Directory structures may be flat (i.e. linear), or allow hierarchies where directories may contain subdirectories. Samba sets up network shares for chosen Unix directories (including all contained subdirectories). Also, no effort is made to recursively merge subdirectories, leading to an extremely simple implementation. The command can display files in subdirectories. Deletes a directory along with all of the files and subdirectories that it contains. Each diskette has one directory and no subdirectories. Supports subdirectories and hard drives being capable of handling filesystems sized up to 16 MB. Unix also popularized the hierarchical file system with arbitrarily nested subdirectories, originally introduced by Multics. This directory contains several subdirectories including bin, doc, examples and many others. The file on many Linux systems defines the subdirectories created for users by default. In modern systems, a directory can contain a mix of files and subdirectories. It uses the CP/M-derived file control blocks for disk access and does not support subdirectories. All subdirectories of that path are also searched. It may be empty, or it may contain subdirectories for mounting individual devices.