Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: [Solved] How to remove / kill defunct processess?
Operating Systems HP-UX [Solved] How to remove / kill defunct processess? Post 302411070 by jgt on Wednesday 7th of April 2010 01:26:44 PM
Old 04-07-2010
This issue seems to be caused by users closing Windows terminal emulation sessions without first signing off, (clicking on the X before exiting the session.)
On SCO systems, these "ghost" sessions tend to consume all the available CPU trying to re-connect.
I wrote the following script to deal with this issue, but it should be used with caution.
On SCO systems telnet sessions are named ttypnn, on HP-UX it appears they are named pts/nnn.

Code:
#!/bin/ksh
if [ $# -eq 0 ]
then
echo Usage is delete.ghosts  Y or N
exit 1
fi
ps -leaf |grep ttyp >/tmp/ps.list
who >/tmp/user.list
LIST=; export LIST
separator=" "
while read a tty c 
do
LIST=$LIST$separator$tty
separator=" |"
done </tmp/user.list
grep -v "?" </tmp/ps.list |grep -v root |\
grep -E -v "$LIST" >/tmp/ghost.list
while read a b user pid e f
do
if [ $1 = Y ]
then
echo for real $user $pid
echo kill -9 $pid
#kill -9 $pid
else
echo test run $user $pid
echo kill -9 $pid
fi
done </tmp/ghost.list
#

 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

child processess

Hi, suppose i want to display the child processess that are running at the background.how do u do it. ps -ef shows both parent and child processess i need to see only the child processess. cheers. (3 Replies)
Discussion started by: uni_ajay_r
3 Replies

2. Solaris

how do I kill defunct processes?

mqm 17700 16815 0 0:00 <defunct> kill -9 does not work, even as root (10 Replies)
Discussion started by: csaunders
10 Replies

3. Shell Programming and Scripting

[solved] remove pattern with sed

Hi, i want to remove a certain pattern when i type pwd. pwd will look like this: ..../....../....../Pat_logs/..../....../...../...... the dotted lines are just random directory names, i want it to remove the "Pat_logs/...../....../....../" part so for example: ... (8 Replies)
Discussion started by: a27wang
8 Replies

4. UNIX for Dummies Questions & Answers

[Solved] remove all files of 2010

Hi, how to use "rm" to delete only files from year 2010 ? Thank you. (2 Replies)
Discussion started by: big123456
2 Replies

5. Programming

[solved] how to remove header and footer

it still display header and footer header SQL*Plus: Release 10.2.0.1.0 - Production on Mon Sep 24 13:41:51 2012 Copyright (c) 1982, 2005, Oracle. All rights reserved. Connected to: Oracle Database 10g Enterprise Edition Release 10.2.0.5.0 - 64bit Production With the Partitioning, Real... (0 Replies)
Discussion started by: ment0smintz
0 Replies

6. Shell Programming and Scripting

[Solved] remove file extension

Hi, I have some files with some extension e.g. abc.xml.REMOVE,xyz.xml,efg.xml.REMOVE . I have to remove the .REMOVE extension. I can display it using the below script but cannot rename it. ls -l|sed 's/\.REMOVE//' How can I rename this? Thanks in advance (7 Replies)
Discussion started by: babom
7 Replies

7. UNIX for Dummies Questions & Answers

[Solved] Help to remove a line from a file

Hi, I just upgraded one my server to latest version RHEL, I have many users who will do SSH from another server. I wanted to update all of the users home directory and remove the security key. For example. /home/XYZ/.ssh/known_hosts and remove this hostsname. Please see below and advise.... (2 Replies)
Discussion started by: samnyc
2 Replies

8. Shell Programming and Scripting

[Solved] awk to remove lines

Hi, I have a file with contents. file1: <2013 tttaaa abc123 <2013 gggdddd <2013 sssssss <2013 eeeee I need to remove the lines which do not have the word "tttaaa" can some one help ? (7 Replies)
Discussion started by: giri_luck
7 Replies

9. Shell Programming and Scripting

[SOLVED] Want to remove output from a command

Hi, I'm on AIX 5.2. I wrote a script that makes a traceroute to a host. The script works fine but each time it using the traceroute command its generate the 2 output lines. this is the command in my script traceroute -n -m 5 -w 2 $Host | grep 172 | awk '{print $2}' | tail -1 traceroute... (2 Replies)
Discussion started by: ce9888
2 Replies

10. Shell Programming and Scripting

[Solved] How to remove multiple files?

Hi Gurus, I have below files in one directory. the file name has date and time portion which is exactly the file be created. I need keep only lasted created file which is abc_20140101_1550 and remove rest of the file. abc_20140101_1300 abc_20140101_1200 abc_20140101_1400 abc_20140101_1500... (2 Replies)
Discussion started by: ken6503
2 Replies

LEARN ABOUT CENTOS

rescan-scsi-bus.sh

RESCAN-SCSI-BUS.SH(1)						   User Commands					     RESCAN-SCSI-BUS.SH(1)

NAME

       rescan-scsi-bus.sh - script for adding and removing SCSI devices without rebooting

SYNOPSIS

       rescan-scsi-bus.sh [options] [host [host ...]]

OPTIONS

       -a, --alltargets
	      scan all targets, not just currently existing [default: disabled]

       -d     enable debug			 [default: 0]

       -l     activates scanning for LUNs 0--7	 [default: 0]

       -L NUM activates scanning for LUNs 0--NUM [default: 0]

       -w, --wide
	      scan for target device IDs 0--15	 [default: 0--7]

       -c     enables scanning of channels 0 1	 [default: 0 / all detected ones]

       -r, --remove
	      enables removing of devices	 [default: disabled]

       -f, --flush
	      flush failed multipath devices	 [default: disabled]

       -i, --issue-lip
	      issue a FibreChannel LIP reset	 [default: disabled]

       -u, --update
	      look for existing disks that have been remapped

       -s, --resize
	      look for resized disks and reload associated multipath devices, if applicable

       --forcerescan
	      rescan existing devices

       --forceremove
	      remove and readd every device (DANGEROUS)

       --nooptscan
	      don't stop looking for LUNs is 0 is not found

       --color
	      use coloured prefixes OLD/NEW/DEL

       --hosts=LIST
	      scan only host(s) in LIST

       --channels=LIST
	      scan only channel(s) in LIST

       --ids=LIST
	      scan only target ID(s) in LIST

       --luns=LIST
	      scan only lun(s) in LIST

       --sync, --nosync
	      issue a sync / no sync [default: sync if remove]

       --attachpq3
	      tell kernel to attach sg to LUN 0 that reports PQ=3

       --reportlun2
	      tell kernel to try REPORT_LUN even on SCSI2 devices

       --largelun
	      tell kernel to support LUNs > 7 even on SCSI2 devs

       --sparselun
	      tell kernel to support sparse LUN numbering

	      Host numbers may thus be specified either directly on cmd line (deprecated) or or with the --hosts=LIST parameter (recommended).

       LIST: A[-B][,C[-D]]... is a comma separated list of single values and ranges (No spaces allowed.)

SEE ALSO

       rescan-scsi-bus.sh Homepage: http://www.garloff.de/kurt/linux/#rescan-scsi

       sg3_utils Homepage: http://sg.danny.cz/sg

rescan-scsi-bus.sh 1.57 					    leden 2014						     RESCAN-SCSI-BUS.SH(1)
All times are GMT -4. The time now is 03:10 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy