Editing Dir (command) (section)

===Unix===
Traditionally, [[Unix]] and [[Unix-like]] systems use the {{code|ls}} command for the needs that <code>dir</code> satisfies. But, the [[GNU#GNU as an operating system|GNU operating system]], has a <code>dir</code> command that "is equivalent to <code>ls&nbsp;-C&nbsp;-b</code>; that is, by default files are listed in columns, sorted vertically, and special characters are represented by backslash escape sequences".<ref>[//www.gnu.org/software/coreutils/manual/html_node/dir-invocation.html dir invocation] (GNU coreutils) at www.gnu.org</ref> Actually, for compatibility reasons, {{code|ls}} produces device-dependent output. The <code>dir</code> command, on the other hand, produces device-independent output.