Hi,

In solaris I remember this direcotry structure

/proc/<pid>/fd

ls -l | wc -l

HPUX has nothing like it.

The closest you might get is the various information ps can offer, which turns out to be quite a bit.

Are you looking for open files by the process? "lsof" is available for HP-UX as well.

lsof -c process_name

And you can drill down on a process with HP-UX glance and see which files that process has open.
Very important when configuring kernel parameters to know how many files a database client actually opens (it can be a large number).




@Corona688
"HPUX has nothing like it."

Sorry, but that is a rubbish post.
Also there is no "ps" option for file descriptors on any unix/Linux Operating System.

I need the number of file descriptor a process has opened and the max limit that is set on my system.

Can you help me with the exact command ?

Yes, with lsof it's very easy.

To check numbers of file descriptors opened by a process:

lsof -p PID | awk '$4~/^[0-9]/' | wc -l

ulimit -n

Check out these kernel parameters.

# kctune maxfiles maxfiles_lim
Tunable       Value  Expression  Changes
maxfiles       2048  Default
maxfiles_lim   4096  Default     Immed
# ulimit -a | grep nofiles
nofiles(descriptors) 2048