du on specific files from find command (use xargs?)

fireman949 · 07-01-2005, 02:16 AM

Typically when you execute 'du -h' you get a listing of all the files in the directory and subdirectories and a total usage at the bottom. I am trying to get the total usage from all the files in several directories. I have tried the following:

Code:

find /home/httpd/vhosts/*/httpdocs/userfiles -ctime +30 -daystart -exec /usr/bin/du -sh '{}' \;

and

Code:

find /home/httpd/vhosts/*/httpdocs/userfiles -ctime +30 -daystart -type d | xargs du -sh | sort -n

Both return virtually the same thing, but no total at the bottom. What I'm trying to accomplish is to give someone an idea of how much space will be cleared up by deleting all the files older than 30 days before I use -exec rm'{} \; with find.

Tinkster · 07-01-2005, 03:16 AM

Neither will work, both exec and xargs will ALWAYS only operate
on the individual arguments, thus won't give you a total ...

What you should be looking at is something like:

Code:

find  -ctime +30 -daystart -type d | xargs du -b 2>/dev/null | awk '{total += $1; print $0} END{print total}'

Cheers,
Tink

fireman949 · 07-10-2005, 01:42 AM

Thanks Tink.

I'm getting a number like 2.61811e+11, which if I had paid more attention in college I'm sure I'd know how to convert this.

Your solution did work, thank you.