lsof

Lsof stands for LiSt Open Files, and it does just that: it lists
information about files that are open by the processes running on a
UNIX system.

Website:	ftp://lsof.itap.purdue.edu/pub/tools/unix/lsof
License:	zlib
Vendor:	CentOS
Group:	development/debuggers

lsof-4.82-5.el6.x86_64 [323 KiB]

Changelog by Peter Schiffer (2014-11-27):

- resolves: #772991
  fixed NFS output
- resolves: #668099
  added support for SCTP connections