Ok, my goof.
I'm studying for my Linux+, and I'm using the following book:
Linux+ Study Guide, 3rd Edition by Roderick W Smith.
I found this in chp 2 and didn't see that you need to also use, -perm.
I then checked the man page for find and now it makes sense:
Files permission bits are exactly mode (octal or symbolic). Since an exact match is required, if you want
to use this form for symbolic modes, you may have to specify a rather complex mode string. For example -perm
g=w will only match files which have mode 0020 (that is, ones for which group write permission is the only
permission set). It is more likely that you will want to use the / or - forms, for example -perm -g=w,
which matches any file with group write permission. See the EXAMPLES section for some illustrative examples.
Deprecated, old way of searching for files with any of the permission bits in mode set. You should use -perm
/mode instead. Trying to use the + syntax with symbolic modes will yield surprising results. For example,
+u+x is a valid symbolic mode (equivalent to +u,+x, i.e. 0111) and will therefore not be evaluated as -perm
+mode but instead as the exact mode specifier -perm mode and so it matches files with exact permissions 0111
instead of files with any execute bit set. If you found this paragraph confusing, youre not alone - just
use -perm /mode. This form of the -perm test is deprecated because the POSIX specification requires the
interpretation of a leading + as being part of a symbolic mode, and so we switched to using / instead.
-perm +mode is the old way of search for any of the permission bits in