如何查找目录树中的所有符号链接?
我试图在我的网站的目录树中找到所有的符号链接。 我知道我可以使用find
来做到这一点,但我不知道如何递归检查目录。
我试过这个命令:
find /var/www/ -type l
...后来我发现/var/www
中的内容是符号链接,所以我将命令更改为:
find -L /var/www/ -type l
它需要一段时间才能运行,但我没有找到匹配。
我如何得到这个来检查子目录?
这将递归遍历/path/to/folder
目录并仅列出符号链接:
ls -lR /path/to/folder | grep ^l
如果你的意图也是遵循符号链接,你应该使用find
命令,但是你应该包含-L
选项; 事实上, find
手册页说:
-L Follow symbolic links. When find examines or prints information
about files, the information used shall be taken from the prop‐
erties of the file to which the link points, not from the link
itself (unless it is a broken symbolic link or find is unable to
examine the file to which the link points). Use of this option
implies -noleaf. If you later use the -P option, -noleaf will
still be in effect. If -L is in effect and find discovers a
symbolic link to a subdirectory during its search, the subdirec‐
tory pointed to by the symbolic link will be searched.
When the -L option is in effect, the -type predicate will always
match against the type of the file that a symbolic link points
to rather than the link itself (unless the symbolic link is bro‐
ken). Using -L causes the -lname and -ilname predicates always
to return false.
然后试试这个:
find -L /var/www/ -type l
这可能会起作用:我在find
手册页中find
这个菱形:如果您使用-type
选项,则必须将其更改为-xtype
选项:
l symbolic link; this is never true if the -L option or the
-follow option is in effect, unless the symbolic link is
broken. If you want to search for symbolic links when -L
is in effect, use -xtype.
然后:
find -L /var/www/ -xtype l
一个命令,没有管道
find . -type l -ls
干净利落...
扩展这个答案,这里有几个符号链接相关的find
命令:
找到指向特定目标的符号链接
find . -lname link_target
请注意, link_target
可能包含通配符。
找到破碎的符号链接
find -L . -type l -ls
-L
选项指示find
遵循符号链接,除非破坏。
查找并替换断开的符号链接
find -L . -type l -delete -exec ln -s new_target {} ;
更多查找示例
更多find
示例可以在这里找到:http://hamwaves.com/find/
默认情况下已经递归find
:
[15:21:53 ~]$ mkdir foo
[15:22:28 ~]$ cd foo
[15:22:31 ~/foo]$ mkdir bar
[15:22:35 ~/foo]$ cd bar
[15:22:36 ~/foo/bar]$ ln -s ../foo abc
[15:22:40 ~/foo/bar]$ cd ..
[15:22:47 ~/foo]$ ln -s foo abc
[15:22:52 ~/foo]$ find ./ -type l
.//abc
.//bar/abc
[15:22:57 ~/foo]$
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