Find size of directories recursively and get a total

Question

I am using this command to find the folders I want and count up the size.

find . -type d -name 'tmp_c*' | xargs du -hcs {} \; + 

My version of find does not support -exec. But, this works. However I am not sure if its giving me the right totals on the directories that contain my search string. When I run the command and pipe to less, I see it counting up each folders size, and then it outputs a total every so often. Like this:

140K    ./r/g/userid/attach/tmp_c_241091464_2
68K     ./r/g/userid/attach/tmp_c_58367014_undefined
2.3G    total

If I redirect the output to a file then grep on total, I get this:

2.3G    total
978M    total
1.1G    total
2.0G    total
1.1G    total

I think this is giving me the right numbers. But how can I take this command one step further and have it sum up the totals for a grand total on one line?

Answer 1

find . -type d -name 'tmp_c*' -print0 | du -hcs --files0-from -

This assumes (recent enough?) GNU versions of find and du.

Answer 2

This should work, tested on my EL4 box... it's the oldest I have and makes me cringe, I don't know how you use EL3.

find . -type d -name 'tmp_c*' -print0|xargs -0 du -c|tail -1

Done with coreutils-4.5.3-26

Answer 3

https://stackoverflow.com/a/1323769/799204

One alternate solution is to use awk:

but the script must be adapted for this case, try

find . -type d -name 'tmp_c*' -print0 | xargs -0 du -s | awk 'BEGIN { sum=0 } { sum+=$1 } END { print sum }'

output will be in decimal

Answer 4

I checked epel starts at 5 not 3, so only option is custom script.

May aswell install ncdu;

https://dev.yorhel.nl/ncduit

I use it all the time, far easier, faster than any custom bash. (Can navigate through the dirs, saves loads of time).