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2

I have 4 files that I want to include them in a .zip file.

drwxr-xr-x 7 skemelio themelis 4,0K Οκτ 18 00:21 CSharp
drwxr-xr-x 11 skemelio themelis 4,0K Οκτ 18 00:17 gnome-games
drwxr-xr-x 8 skemelio themelis 4,0K Οκτ 18 00:17 gnome-music
drwxr-xr-x 4 skemelio themelis 4,0K Οκτ 18 00:18 Test

As you can see in total they size 32K.

After

I am creating the zip using the command bellow:

zip -r myfiles.zip *

The file was created successfully but now its size is 20M, as you can see bellow!

drwxr-xr-x 7 skemelio themelis 4,0K Οκτ 18 00:21 CSharp
drwxr-xr-x 11 skemelio themelis 4,0K Οκτ 18 00:17 gnome-games
drwxr-xr-x 8 skemelio themelis 4,0K Οκτ 18 00:17 gnome-music
-rw-rw-r-- 1 skemelio themelis 20M Απρ 4 02:00 myfiles.zip
drwxr-xr-x 4 skemelio themelis 4,0K Οκτ 18 00:18 Test

What I've done wrong?

ps: Same thing (same size) happened when I try to create a .tar using tar cvf myfiles.tar *.

tar zip compression

share|improve this question

edited 3 hours ago

Rui F Ribeiro

41.9k1483142

asked 5 hours ago

ThemelisThemelis

1163

New contributor

Themelis is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  A individual directory always shows the 4k size when viewed with ls - what you want to use to check before is du - ie, du -sh *
  
  – ivanivan
  5 hours ago
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Ok I had no idea why this happens but you are right. Why don't you make it an answer?
  
  – Themelis
  5 hours ago
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Possible duplicate of What does size of a directory mean in output of 'ls -l' command?
  
  – Fabby
  4 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  FYI, 4K * 4 = 16K, not 32K. Also, in this case this is due to a misunderstanding of the size that ls reports for directories (that each directory was the exactly the same size should have been a hint that maybe ls isn't reporting what you think), but in general you should not necessarily be surprised if compression sometimes produces a larger file. Compression can't compress everything; otherwise you could repeatedly run zip on a .zip file to get increasingly smaller files.
  
  – jamesdlin
  3 mins ago
  

  
  
  
  

add a comment | 

2

I have 4 files that I want to include them in a .zip file.

drwxr-xr-x 7 skemelio themelis 4,0K Οκτ 18 00:21 CSharp
drwxr-xr-x 11 skemelio themelis 4,0K Οκτ 18 00:17 gnome-games
drwxr-xr-x 8 skemelio themelis 4,0K Οκτ 18 00:17 gnome-music
drwxr-xr-x 4 skemelio themelis 4,0K Οκτ 18 00:18 Test

As you can see in total they size 32K.

After

I am creating the zip using the command bellow:

zip -r myfiles.zip *

The file was created successfully but now its size is 20M, as you can see bellow!

drwxr-xr-x 7 skemelio themelis 4,0K Οκτ 18 00:21 CSharp
drwxr-xr-x 11 skemelio themelis 4,0K Οκτ 18 00:17 gnome-games
drwxr-xr-x 8 skemelio themelis 4,0K Οκτ 18 00:17 gnome-music
-rw-rw-r-- 1 skemelio themelis 20M Απρ 4 02:00 myfiles.zip
drwxr-xr-x 4 skemelio themelis 4,0K Οκτ 18 00:18 Test

What I've done wrong?

ps: Same thing (same size) happened when I try to create a .tar using tar cvf myfiles.tar *.

tar zip compression

share|improve this question

edited 3 hours ago

Rui F Ribeiro

41.9k1483142

asked 5 hours ago

ThemelisThemelis

1163

New contributor

Themelis is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  A individual directory always shows the 4k size when viewed with ls - what you want to use to check before is du - ie, du -sh *
  
  – ivanivan
  5 hours ago
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Ok I had no idea why this happens but you are right. Why don't you make it an answer?
  
  – Themelis
  5 hours ago
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Possible duplicate of What does size of a directory mean in output of 'ls -l' command?
  
  – Fabby
  4 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  FYI, 4K * 4 = 16K, not 32K. Also, in this case this is due to a misunderstanding of the size that ls reports for directories (that each directory was the exactly the same size should have been a hint that maybe ls isn't reporting what you think), but in general you should not necessarily be surprised if compression sometimes produces a larger file. Compression can't compress everything; otherwise you could repeatedly run zip on a .zip file to get increasingly smaller files.
  
  – jamesdlin
  3 mins ago
  

  
  
  
  

add a comment | 

I have 4 files that I want to include them in a .zip file.

drwxr-xr-x 7 skemelio themelis 4,0K Οκτ 18 00:21 CSharp
drwxr-xr-x 11 skemelio themelis 4,0K Οκτ 18 00:17 gnome-games
drwxr-xr-x 8 skemelio themelis 4,0K Οκτ 18 00:17 gnome-music
drwxr-xr-x 4 skemelio themelis 4,0K Οκτ 18 00:18 Test

As you can see in total they size 32K.

After

I am creating the zip using the command bellow:

zip -r myfiles.zip *

The file was created successfully but now its size is 20M, as you can see bellow!

drwxr-xr-x 7 skemelio themelis 4,0K Οκτ 18 00:21 CSharp
drwxr-xr-x 11 skemelio themelis 4,0K Οκτ 18 00:17 gnome-games
drwxr-xr-x 8 skemelio themelis 4,0K Οκτ 18 00:17 gnome-music
-rw-rw-r-- 1 skemelio themelis 20M Απρ 4 02:00 myfiles.zip
drwxr-xr-x 4 skemelio themelis 4,0K Οκτ 18 00:18 Test

What I've done wrong?

ps: Same thing (same size) happened when I try to create a .tar using tar cvf myfiles.tar *.

tar zip compression

share|improve this question

edited 3 hours ago

Rui F Ribeiro

41.9k1483142

asked 5 hours ago

ThemelisThemelis

1163

New contributor

Themelis is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

drwxr-xr-x 7 skemelio themelis 4,0K Οκτ 18 00:21 CSharp
drwxr-xr-x 11 skemelio themelis 4,0K Οκτ 18 00:17 gnome-games
drwxr-xr-x 8 skemelio themelis 4,0K Οκτ 18 00:17 gnome-music
drwxr-xr-x 4 skemelio themelis 4,0K Οκτ 18 00:18 Test

zip -r myfiles.zip *

drwxr-xr-x 7 skemelio themelis 4,0K Οκτ 18 00:21 CSharp
drwxr-xr-x 11 skemelio themelis 4,0K Οκτ 18 00:17 gnome-games
drwxr-xr-x 8 skemelio themelis 4,0K Οκτ 18 00:17 gnome-music
-rw-rw-r-- 1 skemelio themelis 20M Απρ 4 02:00 myfiles.zip
drwxr-xr-x 4 skemelio themelis 4,0K Οκτ 18 00:18 Test

share|improve this question

edited 3 hours ago

Rui F Ribeiro

41.9k1483142

asked 5 hours ago

ThemelisThemelis

1163

New contributor

Themelis is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

share|improve this question

edited 3 hours ago

Rui F Ribeiro

41.9k1483142

asked 5 hours ago

ThemelisThemelis

1163

New contributor

Themelis is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

edited 3 hours ago

Rui F Ribeiro

41.9k1483142

edited 3 hours ago

Rui F Ribeiro

41.9k1483142

asked 5 hours ago

ThemelisThemelis

1163

New contributor

Themelis is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

asked 5 hours ago

ThemelisThemelis

1163

1 Answer
1

active

oldest

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4

An individual directory always shows a false size when viewed with ls - what you want to use to check before is du - ie, du -sh *.

A good explanation of what the size of a directory means is on this Q&A - What does size of a directory mean in output of 'ls -l' command?

share|improve this answer

edited 1 hour ago

slm♦

255k71539687

answered 4 hours ago

ivanivanivanivan

3,7571414

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  The size show by ls for a directory is not false, it is the size of the directory. However the size of a directory is related to the number of entries in it (possibly the largest number it every had), not the size of those entries.
  
  – icarus
  39 mins ago
  

  
  
  
  

add a comment | 

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4

An individual directory always shows a false size when viewed with ls - what you want to use to check before is du - ie, du -sh *.

A good explanation of what the size of a directory means is on this Q&A - What does size of a directory mean in output of 'ls -l' command?

share|improve this answer

edited 1 hour ago

slm♦

255k71539687

answered 4 hours ago

ivanivanivanivan

3,7571414

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  The size show by ls for a directory is not false, it is the size of the directory. However the size of a directory is related to the number of entries in it (possibly the largest number it every had), not the size of those entries.
  
  – icarus
  39 mins ago
  

  
  
  
  

add a comment | 

4

An individual directory always shows a false size when viewed with ls - what you want to use to check before is du - ie, du -sh *.

A good explanation of what the size of a directory means is on this Q&A - What does size of a directory mean in output of 'ls -l' command?

share|improve this answer

edited 1 hour ago

slm♦

255k71539687

answered 4 hours ago

ivanivanivanivan

3,7571414

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  The size show by ls for a directory is not false, it is the size of the directory. However the size of a directory is related to the number of entries in it (possibly the largest number it every had), not the size of those entries.
  
  – icarus
  39 mins ago
  

  
  
  
  

add a comment | 

An individual directory always shows a false size when viewed with ls - what you want to use to check before is du - ie, du -sh *.

A good explanation of what the size of a directory means is on this Q&A - What does size of a directory mean in output of 'ls -l' command?

share|improve this answer

edited 1 hour ago

slm♦

255k71539687

answered 4 hours ago

ivanivanivanivan

3,7571414

share|improve this answer

edited 1 hour ago

slm♦

255k71539687

answered 4 hours ago

ivanivanivanivan

3,7571414

edited 1 hour ago

slm♦

255k71539687

edited 1 hour ago

slm♦

255k71539687

answered 4 hours ago

ivanivanivanivan

3,7571414

answered 4 hours ago

ivanivanivanivan

3,7571414