TranslateProject/published/201910/20191022 How to Get the Size of a Directory in Linux.md

184 lines
8.1 KiB
Markdown
Raw Permalink Normal View History

[#]: collector: (lujun9972)
2019-10-23 09:21:33 +08:00
[#]: translator: (lnrCoder)
2019-10-25 17:14:55 +08:00
[#]: reviewer: (wxy)
[#]: publisher: (wxy)
[#]: url: (https://linux.cn/article-11503-1.html)
[#]: subject: (How to Get the Size of a Directory in Linux)
[#]: via: (https://www.2daygeek.com/find-get-size-of-directory-folder-linux-disk-usage-du-command/)
[#]: author: (Magesh Maruthamuthu https://www.2daygeek.com/author/magesh/)
2019-10-24 11:35:18 +08:00
如何获取 Linux 中的目录大小
======
2019-10-25 17:14:55 +08:00
你应该已经注意到,在 Linux 中使用 [ls 命令][1] 列出的目录内容中,目录的大小仅显示 4KB。这个大小正确吗如果不正确那它代表什么又该如何获取 Linux 中的目录或文件夹大小?这是一个默认的大小,是用来存储磁盘上存储目录的元数据的大小。
2019-10-25 17:14:55 +08:00
Linux 上有一些应用程序可以 [获取目录的实际大小][2]。其中,磁盘使用率(`du`)命令已被 Linux 管理员广泛使用。
2019-10-24 11:35:18 +08:00
我将向您展示如何使用各种选项获取文件夹大小。
2019-10-24 11:35:18 +08:00
### 什么是 du 命令?
2019-10-25 17:14:55 +08:00
[du 命令][3] 表示 <ruby>磁盘使用率<rt>Disk Usage</rt></ruby>。这是一个标准的 Unix 程序,用于估计当前工作目录中的文件空间使用情况。
2019-10-24 11:35:18 +08:00
它使用递归方式总结磁盘使用情况,以获取目录及其子目录的大小。
2019-10-25 17:14:55 +08:00
如同我说的那样, 使用 `ls` 命令时,目录大小仅显示 4KB。参见下面的输出。
```
$ ls -lh | grep ^d
drwxr-xr-x 3 daygeek daygeek 4.0K Aug 2 13:57 Bank_Details
drwxr-xr-x 2 daygeek daygeek 4.0K Mar 15 2019 daygeek
drwxr-xr-x 6 daygeek daygeek 4.0K Feb 16 2019 drive-2daygeek
drwxr-xr-x 13 daygeek daygeek 4.0K Jan 6 2019 drive-mageshm
drwxr-xr-x 15 daygeek daygeek 4.0K Sep 29 21:32 Thanu_Photos
```
2019-10-24 11:35:18 +08:00
### 1) 在 Linux 上如何只获取父目录的大小
2019-10-25 17:14:55 +08:00
使用以下 `du` 命令格式获取给定目录的总大小。在该示例中,我们将得到 `/home/daygeek/Documents` 目录的总大小。
```
$ du -hs /home/daygeek/Documents
2019-10-25 17:14:55 +08:00
$ du -h --max-depth=0 /home/daygeek/Documents/
20G /home/daygeek/Documents
```
2019-10-25 17:14:55 +08:00
详细说明:
2019-10-25 17:14:55 +08:00
* `du` 这是一个命令
* `-h` 以易读的格式显示大小 (例如 1K 234M 2G)
* `-s` 仅显示每个参数的总数
* `--max-depth=N` 目录的打印深度
2019-10-24 11:35:18 +08:00
### 2) 在 Linux 上如何获取每个目录的大小
2019-10-25 17:14:55 +08:00
使用以下 `du` 命令格式获取每个目录(包括子目录)的总大小。
2019-10-25 17:14:55 +08:00
在该示例中,我们将获得每个 `/home/daygeek/Documents` 目录及其子目录的总大小。
```
$ du -h /home/daygeek/Documents/ | sort -rh | head -20
20G /home/daygeek/Documents/
9.6G /home/daygeek/Documents/drive-2daygeek
6.3G /home/daygeek/Documents/Thanu_Photos
5.3G /home/daygeek/Documents/Thanu_Photos/Camera
5.3G /home/daygeek/Documents/drive-2daygeek/Thanu-videos
3.2G /home/daygeek/Documents/drive-mageshm
2.3G /home/daygeek/Documents/drive-2daygeek/Thanu-Photos
2.2G /home/daygeek/Documents/drive-2daygeek/Thanu-photos-by-month
916M /home/daygeek/Documents/drive-mageshm/Tanisha
454M /home/daygeek/Documents/drive-mageshm/2g-backup
415M /home/daygeek/Documents/Thanu_Photos/WhatsApp Video
300M /home/daygeek/Documents/drive-2daygeek/Thanu-photos-by-month/Jan-2017
288M /home/daygeek/Documents/drive-2daygeek/Thanu-photos-by-month/Oct-2017
226M /home/daygeek/Documents/drive-2daygeek/Thanu-photos-by-month/Sep-2017
219M /home/daygeek/Documents/Thanu_Photos/WhatsApp Documents
213M /home/daygeek/Documents/drive-mageshm/photos
163M /home/daygeek/Documents/Thanu_Photos/WhatsApp Video/Sent
161M /home/daygeek/Documents/Thanu_Photos/WhatsApp Images
154M /home/daygeek/Documents/drive-2daygeek/Thanu-photos-by-month/June-2017
150M /home/daygeek/Documents/drive-2daygeek/Thanu-photos-by-month/Nov-2016
```
2019-10-24 11:35:18 +08:00
### 3) 在 Linux 上如何获取每个目录的摘要
2019-10-25 17:14:55 +08:00
使用如下 `du` 命令格式仅获取每个目录的摘要。
```
$ du -hs /home/daygeek/Documents/* | sort -rh | head -10
9.6G /home/daygeek/Documents/drive-2daygeek
6.3G /home/daygeek/Documents/Thanu_Photos
3.2G /home/daygeek/Documents/drive-mageshm
756K /home/daygeek/Documents/Bank_Details
272K /home/daygeek/Documents/user-friendly-zorin-os-15-has-been-released-TouchInterface1.png
172K /home/daygeek/Documents/user-friendly-zorin-os-15-has-been-released-NightLight.png
164K /home/daygeek/Documents/ConfigServer Security and Firewall (csf) Cheat Sheet.pdf
132K /home/daygeek/Documents/user-friendly-zorin-os-15-has-been-released-Todo.png
112K /home/daygeek/Documents/user-friendly-zorin-os-15-has-been-released-ZorinAutoTheme.png
96K /home/daygeek/Documents/distro-info.xlsx
```
2019-10-24 11:35:18 +08:00
### 4) 在 Linux 上如何获取每个目录的不含子目录的大小
2019-10-25 17:14:55 +08:00
使用如下 `du` 命令格式来展示每个目录的总大小,不包括子目录。
```
$ du -hS /home/daygeek/Documents/ | sort -rh | head -20
5.3G /home/daygeek/Documents/Thanu_Photos/Camera
5.3G /home/daygeek/Documents/drive-2daygeek/Thanu-videos
2.3G /home/daygeek/Documents/drive-2daygeek/Thanu-Photos
1.5G /home/daygeek/Documents/drive-mageshm
831M /home/daygeek/Documents/drive-mageshm/Tanisha
454M /home/daygeek/Documents/drive-mageshm/2g-backup
300M /home/daygeek/Documents/drive-2daygeek/Thanu-photos-by-month/Jan-2017
288M /home/daygeek/Documents/drive-2daygeek/Thanu-photos-by-month/Oct-2017
253M /home/daygeek/Documents/Thanu_Photos/WhatsApp Video
226M /home/daygeek/Documents/drive-2daygeek/Thanu-photos-by-month/Sep-2017
219M /home/daygeek/Documents/Thanu_Photos/WhatsApp Documents
213M /home/daygeek/Documents/drive-mageshm/photos
163M /home/daygeek/Documents/Thanu_Photos/WhatsApp Video/Sent
154M /home/daygeek/Documents/drive-2daygeek/Thanu-photos-by-month/June-2017
150M /home/daygeek/Documents/drive-2daygeek/Thanu-photos-by-month/Nov-2016
127M /home/daygeek/Documents/drive-2daygeek/Thanu-photos-by-month/Dec-2016
100M /home/daygeek/Documents/drive-2daygeek/Thanu-photos-by-month/Oct-2016
94M /home/daygeek/Documents/drive-2daygeek/Thanu-photos-by-month/Nov-2017
92M /home/daygeek/Documents/Thanu_Photos/WhatsApp Images
90M /home/daygeek/Documents/drive-2daygeek/Thanu-photos-by-month/Dec-2017
```
2019-10-24 11:35:18 +08:00
### 5) 在 Linux 上如何仅获取一级子目录的大小
2019-10-24 11:35:18 +08:00
如果要获取 Linux 上给定目录的一级子目录(包括其子目录)的大小,请使用以下命令格式。
```
$ du -h --max-depth=1 /home/daygeek/Documents/
3.2G /home/daygeek/Documents/drive-mageshm
4.0K /home/daygeek/Documents/daygeek
756K /home/daygeek/Documents/Bank_Details
9.6G /home/daygeek/Documents/drive-2daygeek
6.3G /home/daygeek/Documents/Thanu_Photos
20G /home/daygeek/Documents/
```
2019-10-24 11:35:18 +08:00
### 6) 如何在 du 命令输出中获得总计
2019-10-25 17:14:55 +08:00
如果要在 `du` 命令输出中获得总计,请使用以下 `du` 命令格式。
```
$ du -hsc /home/daygeek/Documents/* | sort -rh | head -10
20G total
9.6G /home/daygeek/Documents/drive-2daygeek
6.3G /home/daygeek/Documents/Thanu_Photos
3.2G /home/daygeek/Documents/drive-mageshm
756K /home/daygeek/Documents/Bank_Details
272K /home/daygeek/Documents/user-friendly-zorin-os-15-has-been-released-TouchInterface1.png
172K /home/daygeek/Documents/user-friendly-zorin-os-15-has-been-released-NightLight.png
164K /home/daygeek/Documents/ConfigServer Security and Firewall (csf) Cheat Sheet.pdf
132K /home/daygeek/Documents/user-friendly-zorin-os-15-has-been-released-Todo.png
112K /home/daygeek/Documents/user-friendly-zorin-os-15-has-been-released-ZorinAutoTheme.png
```
--------------------------------------------------------------------------------
via: https://www.2daygeek.com/find-get-size-of-directory-folder-linux-disk-usage-du-command/
作者:[Magesh Maruthamuthu][a]
选题:[lujun9972][b]
2019-10-23 09:21:33 +08:00
译者:[lnrCoder](https://github.com/lnrCoder)
2019-10-25 17:14:55 +08:00
校对:[wxy](https://github.com/wxy)
本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译,[Linux中国](https://linux.cn/) 荣誉推出
[a]: https://www.2daygeek.com/author/magesh/
[b]: https://github.com/lujun9972
[1]: https://www.2daygeek.com/linux-unix-ls-command-display-directory-contents/
[2]: https://www.2daygeek.com/how-to-get-find-size-of-directory-folder-linux/
[3]: https://www.2daygeek.com/linux-check-disk-usage-files-directories-size-du-command/