Command for viewing file and folder size in Linux

To view the file size in linux, run the df command. To view the folder size, run the du command. For more information, see. ,

The df command can display the available space and usage of all file systems. See the following example:

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[Yayug @ yayu ~] $ Df-h Filesystem Size Used Avail Use % Mounted on /Dev/sda1 3.9G 300 M 3.4G 8%/ /Dev/sda7 100G 188 M 95G 1%/data0 /Dev/sdb1 133G 80G 47G 64%/data1 /Dev/sda6 7.8G 218 M 7.2G 3%/var /Dev/sda5 7.8G 166 M 7.2G 3%/tmp /Dev/sda3 9.7G 2.5 GB 6.8G 27%/usr Tmpfs 2.0G 0 2.0G 0%/dev/shm

 

The Df command is used to view the file system by disk partition in linux. You can add parameters to view the remaining disk space. The command format is as follows:

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Df-hl

Display format:
File System capacity used available % mount point

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Filesystem Size Used Avail Use % Mounted on /Dev/hda2 45G 19G 24G 44%/ /Dev/hda1 494 M 19 M 450 M 4%/boot /Dev/hda6 4.9G 2.2G 2.5G 47%/home /Dev/hda5 9.7G 2.9G 6.4G 31%/opt None 1009 M 0 1009 M 0%/dev/shm /Dev/hda3 9.7G 7.2G 2.1G 78%/usr/local /Dev/hdb2 75G 75G 0 100%/ /Dev/hdb2 75G 75G 0 100%/

The preceding output is used as an example to indicate:

HD hard disk interface second hard disk (B), second partition (2), capacity is 75G, 75G used, available is 0, so the utilization is 100%, mounted to the root partition directory (/).

The following is an explanation of the relevant commands:

Df-hl view the remaining disk space

Df-h: view the partition size of each root path

Du-sh [directory name] returns the directory size

Du-sm [Folder] returns the total number of MB in this folder.

For more functions, run the following command:

Df -- help

Du -- help

Du: queries the disk space used by files or folders.

If there are many files and folders in the current directory, you can use the command without the du parameter to list the space used by all files and folders cyclically. This is not good for checking whether the location is too large. Therefore, you must specify the number of layers in the directory. The parameter is -- max-depth =, which is a very useful parameter! As shown in the following figure. Use "*" to obtain the space used by the file.

Reminder: FreeBSD, which is always more complex than linux, uses the "du" command to specify the number of layers in the directory, which is simpler than that in linux. It is-d.

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[Root @ bsso yayu] # du-h -- max-depth = 1 work/testing 27 M work/testing/logs 35 M work/testing [Root @ bsso yayu] # du-h -- max-depth = 1 work/testing /* 8.0 K work/testing/func. php 27 M work/testing/logs 8.1 M work/testing/nohup. out 8.0 K work/testing/testing_c.php 12 K work/testing/testing_func_reg.php 8.0 K work/testing/testing_get.php 8.0 K work/testing/testing_g.php 8.0 K work/testing/var. php [Root @ bsso yayu] # du-h -- max-depth = 1 work/testing/logs/ 27 M work/testing/logs/ [Root @ bsso yayu] # du-h -- max-depth = 1 work/testing/logs /* 24 K work/testing/logs/errdate. log_show.log 8.0 K work/testing/logs/pertime_show.log 27 M work/testing/logs/show. log