Difference between revisions 507967 and 507968 on knwiki

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Find
{{other uses}}
{{lowercase|title=find}} 
In [[Unix-like]] and some other [[operating system]]s, <code>'''find'''</code> is a [[command-line utility]] that [[Search engine (computing)|searches]] through one or more [[directory tree]]s of a [[file system]], locates [[Computer file|file]]s based on some [[user (computing)|user]]-specified criteria and applies a user-specified action on each matched file. The possible search criteria include a [[pattern matching|pattern(contracted; show full)

At least one path must precede the expression. <code>find</code> is capable of interpreting [[Wildcard character|wildcards]] internally and commands must be constructed carefully in order to control [[Glob (programming)|shell globbing]].

Expression elements are whitespace-separated and evaluated from left to right.  They can contain logical elements such as AND (
-a) and OR (-&#x2011;and or &#x2011;a) and OR (&#x2011;or or &#x2011;o) as well as more complex predicates.

The [[GNU Find Utilities|GNU]] <code>find</code> has a large number of additional features not specified by POSIX.

== POSIX protection from infinite output ==

Real-world filesystems often contain looped structures created through the use of [[hard link|hard]] or [[symbolic link|soft links]].  The [[POSIX|POSIX standard]] requires that
 The <code>find</code> utility shall detect infinite loops; that is, entering a previously visited
(contracted; show full)[[hu:Find]]
[[ja:Find]]
[[pl:Find]]
[[pt:Find]]
[[ro:Find]]
[[ru:Find]]
[[fi:Find (Unix)]]
[[uk:Find]]