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-R Recursive, i.e. include objects in subdirectories.-v verbose, show objects changed (unchanged objects are not shown). If a symbolic link is specified, the target object is affected. File modes directly associated with symbolic links themselves are typically not used. To view the file mode, the ls or stat commands may be used:
This mutually recursive definition can be converted to a singly recursive definition by inlining the definition of a forest: t: v [t[1], ..., t[k]] A tree t consists of a pair of a value v and a list of trees (its children). This definition is more compact, but somewhat messier: a tree consists of a pair of one type and a list another, which ...
Recursively list all files and directories in the specified directory and any subdirectories, in wide format, pausing after each screen of output. The directory name is enclosed in double-quotes, to prevent it from being interpreted is as two separate command-line options because it contains a whitespace character.
Recursive data structures can dynamically grow to a theoretically infinite size in response to runtime requirements; in contrast, the size of a static array must be set at compile time. "Recursive algorithms are particularly appropriate when the underlying problem or the data to be treated are defined in recursive terms." [27]
Recursive selection - loads files in directory and in subdirectories. Undo an operation. Wide use of regular expressions: when selecting items, for search/replace, etc.. Reading of metadata such as ID3 and Exif tags, or creation/modification/last access time. Change length of names. Change case in various ways.
The most important basic example of a datatype that can be defined by mutual recursion is a tree, which can be defined mutually recursively in terms of a forest (a list of trees). Symbolically: f: [t[1], ..., t[k]] t: v f A forest f consists of a list of trees, while a tree t consists of a pair of a value v and a forest f (its children). This ...
A singly-linked list structure, implementing a list with three integer elements. The term list is also used for several concrete data structures that can be used to implement abstract lists, especially linked lists and arrays. In some contexts, such as in Lisp programming, the term list may refer specifically to a linked list rather than an array.
L: Recursively traverse the current node's left subtree. R: Recursively traverse the current node's right subtree. The trace of a traversal is called a sequentialisation of the tree. The traversal trace is a list of each visited node. No one sequentialisation according to pre-, in- or post-order describes the underlying tree uniquely.