A tool to view open files on the linux/unix system
Description
Lsof (list open files) is a tool to view open files on the linux/unix system.
Everything exists in the form of files in linux/unix. Through files,you can not
only access conventional data, but also access network connections and hardware.
For example, transmission control protocol (TCP) and user datagram protocol (UDP)
sockets, linux system assigns a file descriptor to the application in the backgr-
ound, which provides a lot of information about the application itself.And lsof
can help you list information about files opened by processes.
