how to know the size of a folder by command

[12345671]

Command
ls -alh

show the file and folder, and the size of fils,but how can I know the size of the foler by command line?

 

[lgarner]

du <foldername> to see space for <foldername> and sub-folders, or du -s <foldername> to see only the total.

 

[LKBrwnDBA]

Try this:

wc -c MyFolder/* | tail -1

----------------------------------------------------------------------------
The person who says it can't be done should not interrupt the person doing it. -- Chinese proverb

 

[12345671]

Good,
du foldername -sh shows the size of the folder in MB
du foldername/* -csh shows subfolder sizes and total size

wc -c foldername/* |tail -1 shows the bytes, not in MB.

Anyway, look like ls cannot do this job.

 

[stefanwagner]

note that du will show the disk-usage, not the filesize.
Every small file occupies a minimum-unit - on my system 4 kb, or a multiple of this unit.

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[LKBrwnDBA]

OK, MB:

echo "$(wc -c MyDir/* | tail -1|awk '{print $1/1024/1024;}') MB"

----------------------------------------------------------------------------
The person who says it can't be done should not interrupt the person doing it. -- Chinese proverb

 

[12345671]

You must be a good linux script programmer

 

[stefanwagner]

no - he needn't.
wc * will miss hidden files.

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[stefanwagner]

find ./ -exec cat {} \; 2>/dev/null | wc -c

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