您可以使用grep -v逆匹配

-v, --invert-match        select non-matching lines

是这样的:

find . > files_and_folders
cat files_and_folders | grep -v "permission denied" > files_and_folders

应该有魔力

-=适用于苹果操作系统=-

使用别名创建一个新命令:只需添加~/。bash_profile线:

alias search='find / -name $file 2>/dev/null'

在新的终端窗口中，你可以调用它:

$ file=<filename or mask>; search

例如: $ file =等;搜索

上面的答案对我都没用。我在网上找到的东西都集中在:隐藏错误。没有正确处理进程返回码/退出码。我在bash脚本中使用命令find来定位一些目录，然后检查它们的内容。我计算命令查找成功使用退出代码:值为零工作，否则失败。

Michael Brux提供的答案有时是有效的。但我有一个失败的场景!我发现了问题，自己解决了。我需要修剪文件时:

it is a directory AND has no read access AND/OR has no execute access

这里的关键问题是:AND/OR。我读到的一个很好的建议条件序列是:

-type d ! -readable ! -executable -prune

这并不总是有效的。这意味着当匹配为:

it is directory AND no read access AND no execute access

当授予读访问权限而不授予执行访问权限时，此表达式序列将失败。

经过一些测试后，我意识到这一点，并将我的shell脚本解决方案更改为:

find /home*/ -maxdepth 5 -follow \ \(type d -a !\(-readable -a -executable \) \) -删除\ - o \ \(-type d -a -readable -a -executable -name "${m_find_name}" \) -打印

这里的关键是在组合表达式中放置“not true”:

has read access AND has execute access

否则它没有完全访问权限，这意味着:修剪它。事实证明，在一个之前建议的解决方案失败的场景中，这对我来说是有效的。

我在评论部分提供了以下技术细节。如果细节过多，我很抱歉。

¿Why using command nice? I got the idea here. Initially I thought it would be nice to reduce process priority when looking an entire filesystem. I realized it makes no sense to me, as my script is limited to few directories. I reduced -maxdepth to 3. ¿Why search within /home*/? This it not relevant for this thread. I install all applications by hand via source code compile with non privileged users (not root). They are installed within "/home". I can have multiple binaries and versions living together. I need to locate all directories, inspect and backup in a master-slave fashion. I can have more than one "/home" (several disks running within a dedicated server). ¿Why using -follow? Users might create symbolic links to directories. It's usefulness depends, I need to keep record of the absolute paths found.

use

sudo find / -name file.txt

这很愚蠢(因为你提升了搜索)，也不安全，但写起来要短得多。

您还可以使用-perm和-prune谓词来避免下降到不可读的目录(参见如何从查找程序中删除“拒绝权限”打印输出语句?- Unix和Linux Stack Exchange):

find . -type d ! -perm -g+r,u+r,o+r -prune -o -print > files_and_folders

如果你想从根目录“/”开始搜索，你可能会看到如下输出:

find: /./proc/1731/fdinfo: Permission denied
find: /./proc/2032/task/2032/fd: Permission denied

这是因为许可。要解决这个问题:

可以使用sudo命令: Sudo find /。- name“toBeSearched.file”

它要求超级用户的密码，当输入密码时，你会看到你真正想要的结果。如果您没有使用sudo命令的权限，也就是说您没有超级用户的密码，请先请求系统管理员将您添加到sudoers文件中。

You can use redirect the Standard Error Output from (Generally Display/Screen) to some file and avoid seeing the error messages on the screen! redirect to a special file /dev/null : find /. -name 'toBeSearched.file' 2>/dev/null You can use redirect the Standard Error Output from (Generally Display/Screen) to Standard output (Generally Display/Screen), then pipe with grep command with -v "invert" parameter to not to see the output lines which has 'Permission denied' word pairs: find /. -name 'toBeSearched.file' 2>&1 | grep -v 'Permission denied'