Disk Used ( du ) :- utility & command

Background

Let us use the du command.

The du command stands for disk used.

It is a commonly used command in the Linux world.

OS

OS / Linux

Arguments

Here are some of the arguments supported by the dh command.

Argument Meaning Explanation
-h , –human-readable Human Readable -h
-s, –summarize Summarize -s
–time Timestamp of last modification –time
-X, –exclude=Pattern Exclude file name pattern -X=“*.bak”

 

Syntax

du

Samples

Sample – One Subfolder down, Human Readable, and last modification

Outline
  1. Get disk used by the indicated folder
    • The name of the sub-folder is .git
  2. Only go down one folder
    • –max-depth of 1
  3. Human Readable
    • -h
  4. Time of last modification
    • –time
Command

du .git --max-depth 1 -h --time

 

Output
Output – Text

>du .git --max-depth 1 -h --time
40K     2022-06-03 04:26        .git/hooks
0       2021-11-10 18:55        .git/info
1.1G    2022-06-03 04:28        .git/lfs
24K     2022-06-03 04:28        .git/logs
1.7G    2022-06-03 04:27        .git/objects
0       2022-06-03 04:28        .git/refs
2.8G    2022-06-03 04:28        .git
>

 

Output – Image

Sample – One Subfolder down, Human Readable, and last modification -AND- Sort Output Using Order By in reverse order

Outline
  1. du command
    • Get disk used by the indicated folder
      1. The name of the sub-folder is .git
    • Only go down one folder
      • –max-depth of 1
    • Human Readable
      • -h
    • Time of last modification
      • –time
  2. sort command
    • Human Readable Input
      • -h
    • Reverse Order
      • -r
Command

du .git --max-depth 1 -h --time | sort -h  -r

Output
Output – Text

>du .git --max-depth 1 -h --time | sort -h  -r
2.8G    2022-06-03 04:28        .git
1.7G    2022-06-03 04:27        .git/objects
1.1G    2022-06-03 04:28        .git/lfs
40K     2022-06-03 04:26        .git/hooks
24K     2022-06-03 04:28        .git/logs
0       2022-06-03 04:28        .git/refs
0       2021-11-10 18:55        .git/info
>


Output – Image

OS / MS Windows – SysInternals – du

Artifacts

The du command is not built into MS Windows.

One can get a working version courtesy of SysInternals.

Here is the link

https://docs.microsoft.com/en-us/sysinternals/downloads/du ( link )

 

Arguments

Here are some of the arguments supported by the dh command.

Argument Meaning Explanation
-l Specify subdirectory depth of information (default is all levels). -l 1 ( calculation done on all subfolders, but one the first level subfolder is displayed )
-nobanner No Banner Do not display program info

DU v1.62 – Directory disk usage reporter
Copyright (C) 2005-2018 Mark Russinovich
Sysinternals – http://www.sysinternals.com

 

Syntax

du

Samples

Sample – One Subfolder down

Outline
  1. Get disk used by the indicated folder
    • The name of the sub-folder is .git
  2. Only go down one folder
    • -l of 1
  3. No Banner
    • -nobanner
  4. Quiet Mode
    • -q
Command

du -nobanner -q -l 1 .git

 

Output
Output – Text

>du -nobanner -q -l 1 .git
          23  \.git\hooks
           0  \.git\info
   1,133,180  \.git\lfs
          19  \.git\logs
   1,753,906  \.git\objects
           0  \.git\refs
Files:        923
Directories:  283
Size:         2,956,516,587 bytes
Size on disk: 2,963,533,824 bytes


>

 

Output – Image

Sample – One Subfolder down And Strip Out Summary Lines At the Bottom of the Output

Outline
  1. Get disk used by the indicated folder
    • The name of the sub-folder is .git
  2. Only go down one folder
    • -l of 1
  3. No Banner
    • -nobanner
  4. Quiet Mode
    • -q
Command

du -q -nobanner -l 1 .git 2>nul | findstr /v /c "Processing Totals Files Directories Size"

 

Output
Output – Text

>du -q -nobanner -l 1 .git 2>nul | findstr /v /c "Processing Totals Files Directories Size"
FINDSTR: /c ignored
23 \.git\hooks
0 \.git\info
1,133,180 \.git\lfs
19 \.git\logs
1,753,906 \.git\objects
0 \.git\refs

Output – Image

Lab Environment

Our exercise was conducted on a MS Windows machine.

We used WSH to launch a Linux Environment and use the same folder for both the MS Windows and Linux tests.

 

Summary

Relative to SysInternals’s du re-incarnation, the Linux du command is far more capable.

Because the Linux Sort command supports human readable numeric numbers such as KB, MB and GB we are able to display the numbers aesthetically, yet correctly sorted.

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