How to see the number of files, sockets, pipes etc one process opens?

[yuanyun.ken]

I need see the number of files, sockets, or pipes etc our process
opens,
I know lsof can do this, but unfortunately, customer's machines don't
have this command, and it is impossible to install it on cutomer's
machine.

Iis there any linux alternative of lsof?
Or can java directly implement this function?

any help is greatly appreciated. Thanks in advance.

 

[Arne Vajhøj]

I need see the number of files, sockets, or pipes etc our process
opens,
I know lsof can do this, but unfortunately, customer's machines don't
have this command, and it is impossible to install it on cutomer's
machine.

Iis there any linux alternative of lsof?
Or can java directly implement this function?

This is extremely platform specific. Java can not do it.

Arne

 

[Dan Stromberg]

I need see the number of files, sockets, or pipes etc our process opens,
I know lsof can do this, but unfortunately, customer's machines don't
have this command, and it is impossible to install it on cutomer's
machine.

Iis there any linux alternative of lsof? Or can java directly implement
this function?

any help is greatly appreciated. Thanks in advance.

ls -l /proc/*/fd

You could probably write something in java, but there may be no need.

 

[Tom Anderson]

I need see the number of files, sockets, or pipes etc our process opens,
I know lsof can do this, but unfortunately, customer's machines don't
have this command, and it is impossible to install it on cutomer's
machine.

Iis there any linux alternative of lsof?

netstat will do it for network IO. I don't know a way to do files.

Or can java directly implement this function?

Not without JNI, and if you can do JNI, you can just install lsof.

I'd ask this question on a linux newsgroup.

tom