topic Re: favorite sysadmin scripts you always keep around (3) in Operating System - HP-UX

favorite sysadmin scripts you always keep around (3)

Bill McNAMARA_1 — Wed, 30 Apr 2003 13:24:36 GMT

As the previous thread was getting quite large, I've decided to start a new thread:

favorite sysadmin scripts you always keep around (2)

http://forums.itrc.hp.com/cm/QuestionAnswer/1,,0x836cc1c4ceddd61190050090279cd0f9,00.html

favourite sysadmin scripts you always keep around (1)

http://forums.itrc.hp.com/cm/QuestionAnswer/1,,0x026250011d20d6118ff40090279cd0f9,00.html

PLEASE attach scripts as a txt file to facilitate cut and paste.

TOP POINTS for tried tested and improved and corrected scripts! (ie use at your own risk!)

Later,
Bill

Re: favorite sysadmin scripts you always keep around (3)

Geoff Wild — Wed, 30 Apr 2003 14:04:35 GMT

Not really an individual script - but a tool nonetheless. For anyone running a MC/SG cluster, this is a valuable tool to monitor your environment to ensure all nodes are configured equally.

http://h40045.www4.hp.com/data/ccmon-service-brief.pdf

There is a small cost - usually just 1 or 2 "technical service days" from your support contract.

Note: This doesn't have to be just for MC/SG - any application where you need to monitor similiar configurations across multiple machines will work as well (IE SAP App Servers).

Rgds...Geoff

Re: favorite sysadmin scripts you always keep around (3)

Procnus — Thu, 01 May 2003 01:22:32 GMT

Here's a short perl script I use to find out who is logged in more than once. It's output is a little nicer than sorting and uniq'ing a who

Steven

Re: favorite sysadmin scripts you always keep around (3)

Ramkumar Devanathan — Thu, 01 May 2003 06:00:05 GMT

Five tips - not scripts - for configuring apache.

((teaser below))

1. AcceptMutex
2. Use 2.0 and threading (worker MPM)
3. SSL session cache
4. KeepAliveTimeout
5. Using mod_status

And the link is this -
http://builder.com.com/article.jhtml?id=u00320020423ere01.htm&page=1&vf=fb

HTH.

- ramd.

Re: favorite sysadmin scripts you always keep around (3)

Stefan Farrelly — Thu, 01 May 2003 07:35:50 GMT

Script to loop every second showing how many bytes are coming in to your default lancard. Easily changed to show outbound also. Very handy to see how much traffic is going in and out.

#!/bin/ksh
function lanad
{
lanadmin</tmp/t 2>&1
lan
display

quit
EOF
cat /tmp/t|grep Inbound|grep Oct|awk '{print $4}'
}
echo "Inbound Bytes per second on default lan interface"
let z=0
while true
do
sleep 1
let x=$(lanad)
let t=$x-$z
echo $t
let z=$x
done

Re: favorite sysadmin scripts you always keep around (3)

Doug Burton — Thu, 01 May 2003 14:02:19 GMT

Two things for your .kshrc file.

Cleanup your ps|grep search.
Usage: seek something

alias seek='ps -ef|grep -v grep|grep -v "ps -ef"|grep -i '

Add the server name and current directory your in
to the top of an xterm or dtterm window. NOTE: Changes
the "cd" command.

####################################
# Set window and icon titles
####################################

# put text on the X-window title bar

setTitle()
{
hn="$1"
if [ "$TERM" = "hp" -o "$TERM" = "hpterm" ]
then
echo "^[&f0k${#hn}D$hn^M\c"
elif [ "$TERM" = "xterm" -o "$TERM" = "vt100" ]
then
echo "\033]2;$hn\007\c"
elif [ "$TERM" = "dtterm" -o "$TERM" = "vt220" ]
then
echo "\033]2;$hn\007\c"
fi
}
typeset -fx setTitle

# Lets set an alias

_cd()
{
'cd' ${1:-$HOME} ${2:-}
setTitle "`hostname`:`pwd`" 1>&2
}

alias -x cd="_cd"
_cd .

Re: favorite sysadmin scripts you always keep around (3)

Doug Burton — Thu, 01 May 2003 19:31:25 GMT

I don't remember why but I needed a big test file. I then got a bit carried away and made this....

Re: favorite sysadmin scripts you always keep around (3)

Doug Burton — Thu, 01 May 2003 19:51:27 GMT

This is another file system size checking script using bdf.

File system is >= 90% - email root.
File system is > 95% - page somebody.

It will work when lvol names are large and running bdf drops the "kbytes used" etc data to the next line.

Re: favorite sysadmin scripts you always keep around (3)

Sajith V Mannadiar — Mon, 12 May 2003 12:20:03 GMT

Attached are some useful scripts,

bigfile -> To find large files in a filesystem
For eg, bigfile /var 10\*1024\*1024
will list all files of size greater than 10MB

Regards,
Sajith

Re: favorite sysadmin scripts you always keep around (3)

Sajith V Mannadiar — Mon, 12 May 2003 12:21:58 GMT

Attached script (bigdir) will list you all large folders in a filesystem

for eg., bigdir /var 100\*1024\*1024

will list all folders larger than 100MB in /var

Regards,
Sajith

Re: favorite sysadmin scripts you always keep around (3)

John Meissner — Mon, 12 May 2003 12:30:45 GMT

Here is a script that will let you open a terminal window on someone's workstation and post a messgage to it. I've found this to be useful at times.

Re: favorite sysadmin scripts you always keep around (3)

John Meissner — Mon, 12 May 2003 12:37:26 GMT

This script can be used as a splash screen at the beginning of a script. It contains 2 files. the script and a wxd image file. I won't go into how to create the image file but I'm tar/gzip'ing the script and an image file (as an example)

Re: favorite sysadmin scripts you always keep around (3)

Sajith V Mannadiar — Mon, 12 May 2003 13:05:07 GMT

Here is a very handy script to create all the mount points required for the filesystems listed in fstab...

The script -> create_mnts
-----------

#!/bin/ksh
cd /
echo "Creating the required mount points..."
cat /etc/checklist |grep -v "^#"|awk '{print $2}'| while read dir_name
do
if [ ! -d ${dir_name:="/etc"} ]
then
umask 022;mkdir -p $dir_name
echo "Directory $dir_name created..."
fi
done
echo "Creating the required symbolic links..."
cat /etc/checklist |grep "symbolic link" | while read link_entry
do
sdir=`echo $link_entry|cut -d" " -f2`
ddir=`echo $link_entry|cut -d" " -f3`
ddir1=`dirname $ddir`
ddir2=`basename $ddir`
umask_val=`echo $link_entry|cut -d" " -f8`
umask $umask_val
mkdir -p $ddir1
cd $ddir1
ln -s $sdir $ddir2
echo "Created link $ddir -> $sdir "
umask 022
done

---------------------------------------

Sample fstab attached
--------------------

In our lab, at times, the systtem load increases due to some runaway processes...

Here is a one-liner to catch hold of them.. I call it 'runproc'

#!/bin/ksh

ps -elf|grep " R "|grep -v -E 'grep|ps'

-----------------

Re: favorite sysadmin scripts you always keep around (3)

John Meissner — Mon, 12 May 2003 13:56:29 GMT

this script will report the number of CPS's and their speeds.

Re: favorite sysadmin scripts you always keep around (3)

Dave La Mar — Mon, 12 May 2003 14:02:26 GMT

Attached is a script written because we got tired of mailing out files for the HP CE Tech.
When invoked, the CE can attach a number of files and send to a number of email addresses.
The call to MOTD has a privacy message for our protection, so you can be calling your own or comment this out.
The $MAILX_FILE is an executable that simply performs the mailx command and send out the attachments.

Have fun.

dl

Re: favorite sysadmin scripts you always keep around (3)

Charles Harris — Mon, 12 May 2003 14:51:26 GMT

Hi, here's my totaly pointless script to add that Matrix feel to anything you like:-

#!/usr/bin/sh
# scroll
# Don't ask.

typeset -i x=0
strg_len=`echo "$*" | wc -m`
#clear

delay ()
{
base=0
time=$1
while (( time > base ))
do
(( time = time - 1 ))
delays[x]="Delay?"
done
unset delays[*]
}

while (( x < $strg_len )) && (( $strg_len < 1024 ))
do
(( x = x + 1 ))
scroll[x]=`echo "$*" |cut -c $x`
[ ${scroll[x]} ] 2> /dev/null && {
print "${scroll[x]}\c"
delay 2000
} || {
print "${scroll[x]}\c"
delay 5000
}
done
tput cud1

Good for a laugh!

-ChaZ-

Re: favorite sysadmin scripts you always keep around (3)

Steven E. Protter — Mon, 12 May 2003 19:33:06 GMT

Its been a while since I contribued here.

I have a few more.

check_rootlogin

It reports on bad root login attempts. I use it in cron. It can be set to auto disable the id, but I didn't think that was a very good idea.

SEP

Re: favorite sysadmin scripts you always keep around (3)

Steven E. Protter — Mon, 12 May 2003 19:35:00 GMT

dailydisk.sh

Provides sysadmin with a list of new large files created in size order.

This is a production script.

BTW, I did check my back posts for dups.

SEP

Re: favorite sysadmin scripts you always keep around (3)

John Meissner — Wed, 21 May 2003 11:54:40 GMT

I just finished, and tested successfully, this script. I've been using make_sys_image for a while writting to tape. I wanted to write create an ISO image instead. This script will create a bootable DVD image that you can use a DVD burner to write the image with. You will need CDRW software installed on your HP-UX machine (it's usually installed here:

/opt/OpenSource/xcdroast-0.98

You may need to edit some of the paths in the script for your own use - but on my system it works very well.

Re: favorite sysadmin scripts you always keep around (3)

Karthik S S — Fri, 13 Jun 2003 09:09:45 GMT

Lots of great scripts are available at,

( Unix Power Tools, 2nd Edition: Examples )

ftp://ftp.oreilly.com/published/oreilly/power_tools/unix/upt9707.tgz

Regards,
Karthik