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Regarding du and ll output

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# 1  
Old 06-07-2010
Regarding du and ll output
Hi,

I have some doubts regarding the output of "du" command.
In man page I could see that with "-k" I can get the size in Kilo bytes.
When I do ll on a file the output is in bytes.
I have some requirement to find the size of a file and directories in MegaBytes (MB) for that I am doing a du -k on them and converting the output to MB by dividing it by 1024.
Am I doing right here? Should I use ll as I could see a big difference between both.
Please help me understand.

Code:
 
-k             Gives the block count in 1024-byte blocks.

Last edited by engineer; 06-07-2010 at 08:50 AM..
# 2  
Old 06-07-2010
Depending of your OS, du has -m (mega) -g (giga) options...
# 3  
Old 06-07-2010
Nope Smilie Mine doesnt have those options.
# 4  
Old 06-07-2010
Quote:
Originally Posted by engineer
Should I use ll as I could see a big difference between both.
Please help me understand.

`du` and `ls -l` do not report the same thing. du is reporting the amount of space allocated to the file, while `ls -l` reports the size of the file (which is often less than the amount of space allocated for it on a block device).

Note: I'm assuming "ll" is an alias for "ls -l".

Regards,
Alister
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