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Space used by files listed by ls -lt

Terminal - Space used by files listed by ls -lt
ls -lt | awk '{sum+=$5} END {print sum}'
2013-07-03 20:12:54
User: martinmorono
Functions: awk ls
0
Space used by files listed by ls -lt

Use awk to sum and print the space used by a group of files.

It works well as long as the space used is not bigger than 79094548.80...

I found that upper limit when trying to find out what was the total amount of recoverable space from a set of directories:

user@servername:/home/user/scripts>for dirName in aleph_bin aleph_sh aleph_work dailycheck INTERFAZ ; do echo "${dirName} = $(cat /tmp/purge_ocfs_dir.*.log | awk '{sum+=$5} END {printf "%4.2f", sum}') "; done

aleph_bin = 79094548.80

aleph_sh = 79094548.80

aleph_work = 79094548.80

dailycheck = 79094548.80

INTERFAZ = 79094548.80

In the worst case scenario, the total number might be almost 137G.

user@servername:/home/user/scripts>df -h /ocfs/*

Filesystem Size Used Avail Use% Mounted on

//argalephfsprod/aleph_bin$

137G 38G 99G 28% /ocfs/aleph_bin

//argalephfsprod/aleph_sh$

137G 38G 99G 28% /ocfs/aleph_sh

//argalephfsprod/aleph_work$

280G 135G 146G 49% /ocfs/aleph_work

//argalephfsprod/dailycheck$

137G 38G 99G 28% /ocfs/dailycheck

//argalephfsprod/INTERFAZ/

137G 38G 99G 28% /ocfs/INTERFAZ

Any suggestion about how to get the correct amount of space for total over 80 Mbytes?

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