如何递归查找和列出目录中的最新修改的文​​件与子目录和时间？ [英] How to recursively find and list the latest modified files in a directory with subdirectories and times?

问题描述

操作系统：Linux

文件系统类型：ext3

b

首选解决方案：bash（script / oneliner），ruby，python

目录中有几个子目录和文件。我需要列出所有以这样一种方式构建的目录：每个第一级目录列在最近创建/修改的文件的日期和时间旁边。

为了说明，如果我触摸一个文件或将其内容修改为几个子目录级别，则该时间戳应显示在第一级目录名称旁边。假设我有一个像这样的目录：

$ p $ ./ alfa / beta / gamma / example.txt


code>

我修改了文件 example.txt 的内容，我需要那个时间以人类可读的形式显示在第一级目录 alfa 旁边，而不是时代。我已经尝试了一些使用find， xargs ， sort 之类的东西，但我无法解决问题在创建/修改文件时，文件系统时间戳alfa不会改变。

解决方案

试试这个一：

$ p $ ＃！/ bin / bash
find $ 1 -type f -exec stat --format'％Y ：％y％n'{}\; | sort -nr |切-d：-f2- |头部


执行它，以递归方式开始扫描的目录的路径（它支持带空格的文件名）。

如果有很多文件，它可能需要一段时间才会返回任何内容。如果我们使用 xargs 代替性能可以得到改善：

 ＃！/ bin / bash 
查找$ 1 -type f -print0 | xargs -0 stat --format'％Y：％y％n'| sort -nr |切-d：-f2- |头
  

这有点快。

• Operating system: Linux

• Filesystem type: ext3

• Preferred solution: bash (script/oneliner), ruby, python

I have several directories with several subdirectories and files in them. I need to make a list of all these directories that is constructed in a way such that every first-level directory is listed next to the date and time of the latest created/modified file within it.

To clarify, if I touch a file or modify its contents a few subdirectory levels down, that timestamp should be displayed next to the first-level directory name. Say I have a directory structured like this:

./alfa/beta/gamma/example.txt

and I modify the contents of the file example.txt, I need that time displayed next to the first-level directory alfa in human readable form, not epoch. I've tried some things using find, xargs, sort and the likes but I can't get around the problem that the filesystem timestamp of 'alfa' doesn't change when I create/modify files a few levels down.

解决方案

Try this one:

#!/bin/bash
find $1 -type f -exec stat --format '%Y :%y %n' "{}" \; | sort -nr | cut -d: -f2- | head

Execute it with the path to the directory where it should start scanning recursively (it supports filenames with spaces).

If there are lots of files it may take a while before it returns anything. Performance can be improved if we use xargs instead:

#!/bin/bash
find $1 -type f -print0 | xargs -0 stat --format '%Y :%y %n' | sort -nr | cut -d: -f2- | head

which is a bit faster.

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