System Admin - Monitoring Open Files

System Admin - Monitoring Open Files

Post by [ Davey » Sun, 29 Jan 1995 23:10:37

: Subject : System Admin - Monitoring open files

: I would like to monitor number of files opened by each of the
: process. Is there any command which can display this count for a
: process (or for all processes by pid) ?

: I need this information to find out if a pocess is opening files
: without closing, and whether we are reaching any configuration
: limits.

In case others are interested in this, I have found:

The readme file says:

                lsof (LiSt Open Files) version 3
                        (release 3.02)

Lsof version 3 lists open files for running UNIX processes.  It is
a descendent of ofiles, fstat, lsof version 1, and lsof version 2.
It speaks the following UNIX dialects:

        AIX 3.2.[45]                    IBM RISC/System 6000
        BSDI BSD/386 1.0 and 1.1        PC compatibles
        EP/IX 2.1.1                     CDC 4680
        FreeBSD 1.0e                    PC compatibles
        HP-UX 9.x                       HP
        IRIX 4.0.5 and 5.2              SGI
        NetBSD 0.9a                     PC compatibles
        NeXTSTEP 3.1 and 3.2            NeXT (PC's and NeXT)
        OSF/1 1.3 and 2.0               DEC Alpha
        Sequent Dynix 3.0.12            Sequent Symmetry
        SunOS 4.1.3                     Sun 3 and 4
        SunOS 5.3 (Solaris 2.3)         Sun 4
        Ultrix 2.2 and 4.2              DEC

Version 3 of lsof is distributed as a gzip'd tar archive in the
file lsof_vvv.tar.gz, where vvv is the version number.  (A compressed
tar archive file is also available.)  Since the current version is
3.02, the current lsof distribution files are:

        lsof_3.02.tar.gz                gzip'd tar archive
        lsof_3.02.tar.Z                 compressed tar archive

(If you need a copy of gunzip, look for it at in

*  The May 27, 1994 revision (3.01) includes Solaris/SunOS kernel
   memory access modifications and changes for Dynix, EP/IX, and

*  The June 2, 1884 revision (3.02) refines the generation of the
   Sun kernelbase.h header file so it works without complaint on
   older SunOS versions.  All process_file() functions were modified
   to display "no more information" for file structures whose
   f_count value is zero.

See the 00DIST distribution file for more details on feature
additions and bug fixes.  The 00README distribution file gives
background and installation information.  The lsof.8 distribution
file contains the manual page for lsof; it is the only other
documentation besides the source code (included).

Lsof Version 2

The version 3 predecessor, release 36 of version 2, is also available
in this directory.  It supports the following Unix dialects.

        AIX 3.2.[1234]                  IBM RISC/System 6000
        BSDI BSD/386 1.0                PC compatibles
        EP/IX 1.4.3 and 2.1.1           CDC 4680
        ETAV 1.17                       ETA-10P*
        FreeBSD 1.0e                    PC compatibles
        HP-UX [789].x                   HP
        IRIX 4.0.5 and 5.1.1            SGI
        NetBSD 0.9a                     PC compatibles
        NeXTSTEP 2.1, 3.0, 3.1          NeXT
        OSF/1 1.[23] and 2.0            DEC Alpha
        Sequent Dynix 3.0.12            Sequent Symmetry
        SunOS 4.1.[123]                 Sun 3 and 4
        SunOS 5.[13] (Solaris 2.[13])   Sun 4
        Ultrix 2.2 and 4.2              DEC

Version 2 of lsof is available in the file:

       lsof236tar.gz                    gzip'd tar archive

(If you need a copy of gunzip, look for it at in

5 June 1994


1. US-CA-Los Angeles Lead Unix Systems Admin Job Opening

California State University, Los Angeles
Academic Technology Support
Bulletin #6,7/17/95
Job #95-29

Position: Lead Unix Systems Administrator
Work Schedule: Monday-Friday 8:00am-5:00pm
Salary Range: $4506-$5445/mnth

Under the general direction of the Network Systems Group (NSG)
Supervisor, the incumbent will supervise the development, administration and
management of the campus computing network for research and instruction - the
Instructional Support Information System (ISIS).  As a senior member of NSG,
the incumbent shares systems administration and analysis responsibilities with
other senior staff, delegating systems administration and systems programming
functions as appropriate.  Participates in the ISIS Design Group, which will
design and develop an integrated, heterogeneous, distributed computing system
including the integration and implementation of whole systems network and
systems adminstration and management tools.  Investigates and evaluates new
technologies needed to maintain an efficient and effective system for
teaching, learning and research; advises and consults with other technical
staff to ensure a high level of service to the academic community.  Performs
other related tasks.

Equivalent to five years of progressively responsible experience in UNIX
systems administration which includes systems study, design, programming,
modification, installation or evaluation of operating systems software and a
Bachelor's degree preferable with a major in Computer Science or
related field.

Special Qualifications:
Must have an excellent understanding of Sun Microsystems operating systems and
Open Network Computing (ONC) services of the C programming language, UNIX
shell scripts, system administration, performance tuning, security and related
UNIX systems development tools.  An understanding of and experience with
Microsoft DOS, Windows, MH mail, TCP/IP and FDDI networks desirable.

Closing Date: Monday, July 31, 1995

For an application, please contact:
Human Resource Management, Employment Office
California State University, Los Angeles
5151 State University Dr.
Los Angeles, CA 90032

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