获取对所有用户具有rw权限的文件

Question

我试过了

ls -l | cut -f1 d" " | grep ".{4}rw.{4}"

例如

drwxrwx--x folder folder 4096 sep 3 19:01 dir2

我截断了第一列，并找到匹配的"rw">

但是什么也没发生

Answer 1

根据名称、大小或其他属性搜索文件时，使用find不会出错。对于您的用例，尝试-perm -{mode}，它查找设置了所有{mode}位的文件。您可以使用数字模式，如030或符号版本，g=rw:

find * -perm -g=rw                 # search subdirectories
find * -maxdepth 0 -perm -g=rw     # current directory only

以下是find(1)手册页中不同-perm选项的完整描述:

-perm mode
File's 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.
-perm -mode
All of the permission bits mode are set for the file.
Symbolic modes are accepted in this form, and this is
usually the way in which you would want to use them.  You
must specify `u', `g' or `o' if you use a symbolic mode.
See the EXAMPLES section for some illustrative examples.
-perm /mode
Any of the permission bits mode are set for the file.
Symbolic modes are accepted in this form.  You must
specify `u', `g' or `o' if you use a symbolic mode.  See
the EXAMPLES section for some illustrative examples.  If
no permission bits in mode are set, this test matches any
file (the idea here is to be consistent with the behaviour
of -perm -000).