Editing Find (Unix) (section)

===Predicates===
{{anchor|type filters}}

Commonly-used primaries include:

* <code>-name ''pattern''</code>: tests whether the file name matches the shell-glob pattern given.
* <code>-type ''type''</code>: tests whether the file is a given type. [[Unix file types]] accepted include:
** <code>b</code>: [[Device file|block device (buffered)]];
** <code>c</code>: [[Device file|character device (unbuffered)]];
** <code>d</code>: ''[[Directory (computing)|directory]]'';
** <code>f</code>: ''[[regular file]]'';
** <code>l</code>: [[symbolic link]];
** <code>p</code>: [[named pipe]];
** <code>s</code>: [[Unix domain socket|socket]];
** <code>D</code>: [[Doors (computing)|door]].
* <code>-print</code>: always returns true; prints the name of the current file plus a newline to the [[stdout]].
* <code>-print0</code>: always returns true; prints the name of the current file plus a null character to the [[stdout]]. Not required by POSIX.
* <code>-exec ''program'' ''[arguments...]'' ;</code>: runs ''program'' with the given arguments, and returns true if its exit status was 0, false otherwise. If ''program'', or an argument is '''{}''', it will be replace by the current path (if ''program'' is '''{}''', <code>find</code> will try to run the current path as an executable). POSIX doesn't specify what should happen if multiple '''{}''' are specified. Most implementations will replace all '''{}''' with the current path, but that is not standard behavior.
* <code>-exec ''program'' ''[arguments...]'' {} +</code>: always returns true; run ''program'' with the given arguments, followed by as many paths as possible (multiple commands will be run if the maximum command-line size is exceeded, like for [[xargs]]).<ref name=sus/>
* <code>-ok ''program'' ''[arguments...]'' ;</code>: for every path, prompts the user for confirmation; if the user confirms (typically by entering ''y'' or ''yes''), it behaves like <code>-exec ''program [arguments...]'' ;</code>, otherwise the command is not run for the current path, and false is returned.
* <code>-maxdepth</code>: Can be used to limit the directory depth to search through. For example, <code>-maxdepth 1</code> limits search to the current directory.

If the expression uses none of <code>-print0</code>, <code>-print</code>, <code>-exec</code>, or <code>-ok</code>, find defaults to performing <code>-print</code> if the conditions test as true.