使用过 Linux 系统的小伙伴都知道应该都知道, Linux 系统下的 ls 命令通常被我们用来查看文件目录的内容,但是不知道大家有没有细心留意,ls 命令所显示出来的每一个目录的大小竟然都只有 4 KB ?
$ ls -lh | grep ^d
drwxr-xr-x 3 alvin alvin 4.0K Aug 2 13:57 Bank_Details
drwxr-xr-x 2 alvin alvin 4.0K Mar 15 2019 alvin
drwxr-xr-x 6 alvin alvin 4.0K Feb 16 2019 drive-alvin
drwxr-xr-x 13 alvin alvin 4.0K Jan 6 2019 drive-mageshm
drwxr-xr-x 15 alvin alvin 4.0K Sep 29 21:32 Thanu_Photos
du
命令可以帮到你。 du
是英文 disk usage 的缩写,代表磁盘使用率,它是一个标准的 Unix 程序,用于估算当前工作目录中文件空间的使用情况。 /home/alvin/Documents
为例,来介绍 du
命令的使用。 $ du -hs /home/alvin/Documents
or
$ du -h --max-depth=0 /home/alvin/Documents/
20G /home/alvin/Documents
-h
表示显示成 K、M、G 等大小格式-s
表示显示总和--max-depth=N
表示目录级别为 N-s
选项去掉,不进行统计总和,就能显示每一个目录的大小了,以下仅显示前 20 条: $ du -h /home/alvin/Documents/ | sort -rh | head -20
20G /home/alvin/Documents/
9.6G /home/alvin/Documents/drive-alvin
6.3G /home/alvin/Documents/Thanu_Photos
5.3G /home/alvin/Documents/Thanu_Photos/Camera
5.3G /home/alvin/Documents/drive-alvin/Thanu-videos
3.2G /home/alvin/Documents/drive-mageshm
2.3G /home/alvin/Documents/drive-alvin/Thanu-Photos
2.2G /home/alvin/Documents/drive-alvin/Thanu-photos-by-month
916M /home/alvin/Documents/drive-mageshm/Tanisha
454M /home/alvin/Documents/drive-mageshm/2g-backup
415M /home/alvin/Documents/Thanu_Photos/WhatsApp Video
300M /home/alvin/Documents/drive-alvin/Thanu-photos-by-month/Jan-2017
288M /home/alvin/Documents/drive-alvin/Thanu-photos-by-month/Oct-2017
226M /home/alvin/Documents/drive-alvin/Thanu-photos-by-month/Sep-2017
219M /home/alvin/Documents/Thanu_Photos/WhatsApp Documents
213M /home/alvin/Documents/drive-mageshm/photos
163M /home/alvin/Documents/Thanu_Photos/WhatsApp Video/Sent
161M /home/alvin/Documents/Thanu_Photos/WhatsApp Images
154M /home/alvin/Documents/drive-alvin/Thanu-photos-by-month/June-2017
150M /home/alvin/Documents/drive-alvin/Thanu-photos-by-month/Nov-2016
*
的使用,可以实现显示出指定目录下的文件和目录的大小信息的效果: $ du -hs /home/alvin/Documents/* | sort -rh | head -10
9.6G /home/alvin/Documents/drive-alvin
6.3G /home/alvin/Documents/Thanu_Photos
3.2G /home/alvin/Documents/drive-mageshm
756K /home/alvin/Documents/Bank_Details
272K /home/alvin/Documents/user-friendly-zorin-os-15-has-been-released-TouchInterface1.png
172K /home/alvin/Documents/user-friendly-zorin-os-15-has-been-released-NightLight.png
164K /home/alvin/Documents/ConfigServer Security and Firewall (csf) Cheat Sheet.pdf
132K /home/alvin/Documents/user-friendly-zorin-os-15-has-been-released-Todo.png
112K /home/alvin/Documents/user-friendly-zorin-os-15-has-been-released-ZorinAutoTheme.png
96K /home/alvin/Documents/distro-info.xlsx
-S
选项,以排除子目录的形式来统计大小: $ du -hS /home/alvin/Documents/ | sort -rh | head -20
5.3G /home/alvin/Documents/Thanu_Photos/Camera
5.3G /home/alvin/Documents/drive-alvin/Thanu-videos
2.3G /home/alvin/Documents/drive-alvin/Thanu-Photos
1.5G /home/alvin/Documents/drive-mageshm
831M /home/alvin/Documents/drive-mageshm/Tanisha
454M /home/alvin/Documents/drive-mageshm/2g-backup
300M /home/alvin/Documents/drive-alvin/Thanu-photos-by-month/Jan-2017
288M /home/alvin/Documents/drive-alvin/Thanu-photos-by-month/Oct-2017
253M /home/alvin/Documents/Thanu_Photos/WhatsApp Video
226M /home/alvin/Documents/drive-alvin/Thanu-photos-by-month/Sep-2017
219M /home/alvin/Documents/Thanu_Photos/WhatsApp Documents
213M /home/alvin/Documents/drive-mageshm/photos
163M /home/alvin/Documents/Thanu_Photos/WhatsApp Video/Sent
154M /home/alvin/Documents/drive-alvin/Thanu-photos-by-month/June-2017
150M /home/alvin/Documents/drive-alvin/Thanu-photos-by-month/Nov-2016
127M /home/alvin/Documents/drive-alvin/Thanu-photos-by-month/Dec-2016
100M /home/alvin/Documents/drive-alvin/Thanu-photos-by-month/Oct-2016
94M /home/alvin/Documents/drive-alvin/Thanu-photos-by-month/Nov-2017
92M /home/alvin/Documents/Thanu_Photos/WhatsApp Images
90M /home/alvin/Documents/drive-alvin/Thanu-photos-by-month/Dec-2017
max-depth
设定为 1 就可以了: $ du -h --max-depth=1 /home/alvin/Documents/
3.2G /home/alvin/Documents/drive-mageshm
4.0K /home/alvin/Documents/alvin
756K /home/alvin/Documents/Bank_Details
9.6G /home/alvin/Documents/drive-alvin
6.3G /home/alvin/Documents/Thanu_Photos
20G /home/alvin/Documents/
-c
选项能够对结果进行统计,可以看到,指定目录下的文件和目录的大小的总和是 20 G,这和上面第一条命令中所得出的 /home/alvin/Documents/
的大小 20 G 是一致的: $ du -hsc /home/alvin/Documents/* | sort -rh | head -10
20G total
9.6G /home/alvin/Documents/drive-alvin
6.3G /home/alvin/Documents/Thanu_Photos
3.2G /home/alvin/Documents/drive-mageshm
756K /home/alvin/Documents/Bank_Details
272K /home/alvin/Documents/user-friendly-zorin-os-15-has-been-released-TouchInterface1.png
172K /home/alvin/Documents/user-friendly-zorin-os-15-has-been-released-NightLight.png
164K /home/alvin/Documents/ConfigServer Security and Firewall (csf) Cheat Sheet.pdf
132K /home/alvin/Documents/user-friendly-zorin-os-15-has-been-released-Todo.png
112K /home/alvin/Documents/user-friendly-zorin-os-15-has-been-released-ZorinAutoTheme.png