The command
$ps -eF
lists all process along-with the full command which started the process. When I ran this, I could not see the entire command due the width restriction of my terminal. This is the solution to set unlimited width:
$ps -eF -w -w
Now, suppose I want to know a specific process by its name:
$ps -F -C java -w -w
The -C option accepts a list of process name like:
$ps -F -C “java xmms” -w -w
For a list of files opened by a process, use
$/usr/sbin/lsof -p 3456 | grep XXXX
[Courtesy Prakash]