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little bash script to list all directories (& subdirectories ) and sum up the disk space of each

Posted on 2014-03-09
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Last Modified: 2014-03-13
Hello

I am looking for little bash script to list all directories (& subdirectories ) and sum up the disk space of each  directory (& subdirectory ) .

Yes I want bash, not perl :)

It would be nice to do everything in k ( kilobytes )  so I know longer numbers means more space.

It would also be nice to show in order the largest directories or largest files in order

Oh, redhat 5&6 is what it needs to run on :).  Also I have no control of anything so installing any software is not an option.

thx

timfox
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Question by:TIMFOX123
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Assisted Solution

by:woolmilkporc
woolmilkporc earned 250 total points
ID: 39915826
find /start/directory -type d | xargs du -kSs |sort -n

Please note the "-S" (uppercase "S") flag of "du"!

That's the "separate-dirs" option to report the size of each directory separately, not including the sizes of subdirectories.
"-k" means: report in kilobytes, "-s" means: summarize.

Add the "-c" option to have "du" produce a "total" at the end of the report:

find /start/directory -type d | xargs du -kSsc |sort -n

To revert the sort order (i.e. largest directory first) use the "-r" flag of "sort" ("sort -rn").
Attention: the total sum will consequently appear at the top!

Finally, to exclude zero-size directories use "| grep -v "^0"" at the end of the command chain:

find /start/directory -type d | xargs du -kSsc |sort -rn | grep -v "^0"
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Expert Comment

by:Duncan Roe
ID: 39916599
Add -mindepth 1  to avoid getting the total sum (it stops find from finding  ".")
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LVL 34

Expert Comment

by:Duncan Roe
ID: 39916601
i.e. find /start/directory -type d -mindepth 1 | ...
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Author Comment

by:TIMFOX123
ID: 39916607
great stuff,  I will check from work tomarrow !!
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LVL 13

Assisted Solution

by:Sandy
Sandy earned 125 total points
ID: 39916796
or else.. if you just wanted to see which all files are the biggest contributor... you can use below command

#find <fs> -xdev -ls | sort -nr -k 7 | head <numberoflines>

TY/SA
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LVL 2

Assisted Solution

by:gdarcan
gdarcan earned 125 total points
ID: 39916838
for f in `find . -type d`;do du -s $f;done;

Open in new window

or human readable version
for f in `find . -type d`;do du -s -h $f;done;

Open in new window

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LVL 68

Accepted Solution

by:
woolmilkporc earned 250 total points
ID: 39917229
I forgot a maybe important thing:

If you have (or suspect to have) directory names containing embedded spaces we must make some changes:

find /start/directory -type d -print0 | xargs -0 du -kSs |sort -n

find /start/directory -type d -print0 | xargs -0 du -kSsc |sort -n

find /start/directory -type d -print0 | xargs -0 du -kSsc |sort -rn | grep -v "^0"

OR

find /start/directory -type d -print0 | du -kSs --files0-from=-|sort -n

find /start/directory -type d -print0 | du -kSsc --files0-from=- |sort -n

find /start/directory -type d -print0 | du -kSsc --files0-from=- |sort -rn | grep -v "^0"
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Author Closing Comment

by:TIMFOX123
ID: 39926532
all fantastic answers !!
you all are my "secret weapon" at work !!!
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