列出所有不以数字开头的文件 [英] List all files not starting with a number

问题描述

我想检查/proc中存在的所有密钥文件.但是/proc具有与正在运行的进程相对应的无数目录.我不想列出这些目录.所有这些目录的名称仅包含数字.由于我的正则表达式很差，所以谁能告诉我要发送给ls的regex使其变为 NOT ( NOT )的功能?

I want to examine the all the key files present in my /proc. But /proc has innumerable directories corresponding to the running processes. I don't want these directories to be listed. All these directories' names contain only numbers. As I am poor in regular expressions, can anyone tell me whats the regex that I need to send to ls to make it NOT to search files/directories which have numbers in their name?

更新:感谢所有答复！但是我很想拥有一个单独的ls解决方案，而不是ls+grep解决方案.到目前为止，仅提供的ls解决方案似乎无效！

UPDATE: Thanks to all the replies! But I would love to have a ls alone solution instead of ls+grep solution. The ls alone solutions offered till now doesn't seem to be working!

推荐答案

/proc中所有不包含数字的文件和目录(换句话说，不包括进程目录):

All files and directories in /proc which do not contain numbers (in other words, excluding process directories):

ls -d /proc/[^0-9]*

/proc下所有以数字开头的文件都是递归的:

All files recursively under /proc which do not start with a number:

find /proc -regex '.*/[0-9].*' -prune -o -print

但是这还将排除子目录中的数字文件(例如/proc/foo/bar/123).如果您只想排除带数字的顶级文件:

But this will also exclude numeric files in subdirectories (for example /proc/foo/bar/123). If you want to exclude only the top-level files with a number:

find /proc -regex '/proc/[0-9].*' -prune -o -print

再次坚持！这是否意味着将排除由touch /proc/123等创建的任何常规文件?从理论上讲是可以的，但是我认为您不能做到这一点.尝试为不存在的PID创建文件:

Hold on again! Doesn't this mean that any regular files created by touch /proc/123 or the like will be excluded? Theoretically yes, but I don't think you can do that. Try creating a file for a PID which does not exist:

$ sudo touch /proc/123
touch: cannot touch `/proc/123': No such file or directory

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