lsof output description

mayrus9 · 04-27-2010, 03:51 AM

Hi,

i have two questions,

1)the size mentioned in lsof command is in bytes ?
2)( if the above assumption is correct)
I have checked openfiles under /opt(using command lsof /opt) and found the total size of all the open files is 128 GB , where my actual /opt partition size is 8 GB.

kindly help me .

thanks,
mayrus.

colucix · 04-27-2010, 07:18 AM

Indeed the size is in bytes. lsof doesn't report physical size for objects that don't have one (for example sockets, pipes, block devices and so on). In some cases it reports the size of the I/O buffers or the byte offset. Despite these (in some degree) obscure concepts, you can force to report the true size (where available) using the -s option. Said this, how did you compute the total size?

I would end up with something like this:

Code:

lsof -s /opt | awk 'NR > 1{total+=$7} END{print total}'

provided the SIZE is the 7th column in the lsof's output.

trancephorm · 07-22-2014, 07:03 AM

sudo lsof -s | grep -i deleted | awk 'NR > 1{total+=$7} END{print total}'
71135016

... So I have 71 GB in deleted files for which it seems space cannot be recovered automatically... Is there a way to do it manually? Thanks...

trancephorm · 07-22-2014, 09:05 AM

It's me again.....

was reading something around, and it seems that you cannot extend ext4 to the left, just to the right... seems that extra 50 GB can't be acquired that way...

trancephorm · 07-22-2014, 01:45 PM

given up... succesfully restored / filesystem to freshly created ext4 using this: http://crunchbanglinux.org/wiki/howt...ing_fsarchiver, now df free size is reported ok.

anyways, thanks to all that tried to help!