相关疑难解决方法(0)

当我使用grepor 时find，我总是对“权限被拒绝”和“没有这样的文件或目录”通知感到恼火，如下所示：

johndoe@johndoe-desktop:/$ grep -rnP 'YII_CORE_PATH' ./ | grep -v .svn
grep: ./lib/ufw/user6.rules: Permission denied
grep: ./lib/ufw/user.rules: Permission denied
grep: ./lib/init/rw/udev/watch/27: No such file or directory
grep: ./lib/init/rw/udev/watch/26: No such file or directory
grep: ./lib/init/rw/udev/watch/25: No such file or directory

我怎样才能避免它们并使它只看到相关数据，即我真正在寻找的东西？