1 find . -perm 664
2
3 Search for files which have read and write permission for their owner, and group, but which other users can read but not write to.
4 Files which meet these criteria but have other permissions bits set (for example if someone can execute the file) will not be matched.
5
6 find . -perm -664
7
8 Search for files which have read and write permission for their owner and group, and which other users can read, without regard to the
9 presence of any extra permission bits (for example the executable bit). This will match a file which has mode 0777, for example.
10
11 find . -perm /222
12
13 Search for files which are writable by somebody (their owner, or their group, or anybody else).
14
15 find . -perm /220
16 find . -perm /u+w,g+w
17 find . -perm /u=w,g=w
18
19 All three of these commands do the same thing, but the first one uses the octal representation of the file mode, and the other two use
20 the symbolic form. These commands all search for files which are writable by either their owner or their group. The files don't have
21 to be writable by both the owner and group to be matched; either will do.
22
23 find . -perm -220
24 find . -perm -g+w,u+w
25
26 Both these commands do the same thing; search for files which are writable by both their owner and their group.
27
28 find . -perm -444 -perm /222 ! -perm /111
29 find . -perm -a+r -perm /a+w ! -perm /a+x
30
31 These two commands both search for files that are readable for everybody ( -perm -444 or -perm -a+r), have at least one write bit set (
32 -perm /222 or -perm /a+w) but are not executable for anybody ( ! -perm /111 and ! -perm /a+x respectively).