favourite sysadmin scripts you always keep around....

[Bill McNAMARA_1]

Hi add your scripts for a sharing to this thread..
top points awarded for TRIED and TESTED scripts!


swcopy:
=======
http://forums.itrc.hp.com/cm/QuestionAnswer/1,,0x9a6150011d20d6118ff40090279cd0f9,00.html

bdf in MB:
==========
from the forums.. attached

nickel:
=======
html collect system info
http://www.grc.hp.com/docs/nickel/

Later,
Bill

[Justo Exposito · Accepted solution]

Hi,

This is a script provided by HP in order to get LVM information.

Regards,

Justo.

PD: good issue!!!

[Thierry Poels_1]

Hi,

one of the favourite sysadmin scripts should be a cleanup script for /tmp /var/tmp and other (application) temporary directories. As this is server/site specific it's hard to give a standard script.

Another important one is the cfg2html script, which gives you far more information about your server than you ever going to need ;-) (hopefully)
http://members.tripod.com/rose_swe/cfg/cfg.html


regards,
Thierry.

[Animesh Chakraborty]

Hi,
Good examples of script available here.

http://www.introcomp.co.uk/examples/index.html

[Steven Sim Kok Leong]

Hi,

My pfsmcd script, many years back. pfsmcd starts the pfs daemons if they have not been started, detects if a CD is already mounted and pfs-mounts the CD (Oracle CD) if it has not been mounted or pfs-unmounts the CD if it has already been mounted.

In addition to root.sh, I had this script added to restricted sam so that the DBA won't come and bother me to mount and unmount Oracle CDs everytime.

Hope this helps. Regards.

Steven Sim Kok Leong

#!/usr/bin/ksh

if ps -ae|grep -v grep|grep pfs_mountd > /dev/null 2>/dev/null
then
echo pfs_mountd already started
else
echo Starting pfs_mountd
nohup /usr/sbin/pfs_mountd &
sleep 5
fi
if ps -ae|grep -v grep|grep pfsd > /dev/null 2>/dev/null
then
echo pfsd already started
else
echo Starting pfsd
nohup /usr/sbin/pfsd &
sleep 5
fi
if /sbin/mount|grep /cdrom > /dev/null 2>/dev/null
then
echo Unmounting /cdrom
pfs_umount /cdrom > /dev/null 2>/dev/null
else
echo Mounting /cdrom
pfs_mount /cdrom > /dev/null 2>/dev/null
fi

[Mark van Hassel]

Not a shell script, but a little C program that creates a detailed memory report.

[Volker Borowski]

Well,
not a shell script, but a complete reference to UNIX:

http://w3.softlookup.com/unix

I am pretty sure you're gonna like chapter 15 Bill :-)

Volker

[Volker Borowski]

Oh dear,

sorry for that link. Came accross it via search engine, and it worked fine, but if you call the link directly, you get a whole lot of commercial popups.

Sorry for that, did not intend to.....
Volker

[Bill McNAMARA_1]

wooo, apparently I should be earning $4000 per week!
I'm going to have to speak to my boss about that!

15 - Awk, Awk
oh my God ;)

Later,
Bill

[Wim Rombauts]

The script thta Jesto has given is great for HP-UX 10.20 machines, but returns an error on HP-UX 11.0 and has some layout issues because of new information that is given by HP-UX 11.0.

Some time ago, i have done the effort to modify the script a very little and to correct the layout issues. For anyone who is interested : feel free to use and enhance it further :

[Craig Rants]

There is not much to it, but it always solves the problem of running a script on the last day of the month. Put 28-31 (for days) in your crontab and put this little section in for date determination.

#!/bin/sh

if test `TZ=MET-24 date +%d` = 01
then
exec command
else
exit 1
fi


C

[Duncan Edmonstone]

Can't claim to written this one, but its invaluable notheless...

Produces a map of the lvol locations in vg00

HTH

Duncan

[Tracey]

I have two favorite scripts that I keep on all machines. This one is user_kill

It gets rid of those nasty users who just won't log off when you ask them to in order to do maintenance. It does keep a few users that you don't accidently want to get rid of.

Tracey

[Tracey]

Here is my second one, it is idle_kill a C program. It clears out your system those users have been idle for too darn long, you can also provide a list of users to ignore (wouldn't want to knock yourself off, eh?)

The exception list is just a file with contents like:

root
oracle
tracey


Tracey

[Paula J Frazer-Campbell]

Hi Bill

A small script to ensure that tapes are never missed.

I have it cronned to run on all servers at 16:00 hrs every day.

Change the Email address to suit


-----------------cut here----------------
#!/bin/sh
#############################################
# Check for tape in drive
# PJFC 2002
#############################################
# Check if tape is in Drive (set for correct dev file)
if /usr/bin/mt -t /dev/rmt/0m rew 2>/dev/null ; then
#############################################
echo "----------------------------" >>/tmp/tape-log
date >> /tmp/tape-log
echo "------ Tape in ------" >>/tmp/tape-log
else
#############################################
# Inform if no tape in drive
echo "----------------------------" >>/tmp/tape-log
date >> /tmp/tape-log
echo "------ TAPE NOT LOADED -----" >>/tmp/tape-log
mailx -s "Tape not mounted on N0" paula@avro.co.uk mailx -s "Tape not in on N0" helpdesk@avro.co.uk exit
fi
-----------------cut here----------------

The /tmp/tape-log keeps historical data and the /sysadmin/team just contains the words "Unix Support Team".


Paula

[Deshpande Prashant]

HI
Here is the SysInfo script.

Thanks.
Prashant Deshpande.

[Helen French]

Hi,

Here is a script for sending mail, with message body and attachment.

HTH,
Shiju

[Sanjay_6]

Hi Bill,

Here is one to find the clock speed of the system.

./mhz

Regds

[Richard Darling]

Here are two scripts that I love; first one uses cpio to copy from one system to another, retaining permissions and ownerships. Second one gives a really nice report on EVERYTHING you might want to know about a system.

RD

[Alan Riggs]

I use this to centralize common admin tasks. It runs on my admin server and executes a command on any of several preset server groups (specified by server.XXX files).

# cat run
#!/bin/ksh
##############################################################################
#
# THIS SCRIPT RUNS COMMANDS ON REMOTE SERVERS. IT EXPECTS TWO
# COMMAND LINE PARAMETERS:
# $1 SPECIFIES THE EXTENSION OF THE FILE CONTAINING SERVER
NAMES
# $2 CONTAINS THE COMMAND STRING TO RUN ON THE REMOTE SERV
ERS.
#
# CREATED 04/05/00 Alan Riggs
#
##############################################################################
##############################################################################
# ESTABLISH ENVIRONMENTAL VARIABLES
##############################################################################
FILE_BASE=/home/admin/server
EXTENSION=$1
COMMAND=$2

##############################################################################
# USAGE STATEMENT: CHECK FOR EXACTLY TWO COMMAND LINE PARAMETERS
##############################################################################
if [ "$#" -ne 2 ]
then
echo "
usage: run [file extension] [command string]\n
run will execute the command string on one or more remote servers.
The script expects a list of servers in $FILE_BASE.[file extension]
Remember to quote command strings of more than one line.\n "
exit 1
fi

##############################################################################
# RUN THE COMMAND ON THE REMOTE SERVERS
##############################################################################
while read SERVER
do
echo "$SERVER"
remsh $SERVER -n "$COMMAND"
done < "$FILE_BASE"."$EXTENSION"

[Alan Riggs]

Here's a short and sweet to locate unallocated physical disks on a server.

# cat find_free_disks.sh
#!/bin/ksh
##############################################################################
#
# THIS SCRIPT FINDS DISKS WHICH NOT PRESENTLY BELONG TO A VOLUME GROUP
#
# CREATED 10/29/99 Alan Riggs
#
##########################################################
set -A DISKS `ls /dev/dsk`

echo "BLOCK SPECIAL FILE\tSIZE\tTYPE"
echo "==================\t====\t===="
for DISK in ${DISKS[*]}
do
pvdisplay /dev/dsk/$DISK >/dev/null 2>&1
if [ $? = 1 ]
then
SIZE=`diskinfo /dev/rdsk/$DISK|grep size|awk '{print $2}'`
TYPE=`diskinfo /dev/rdsk/$DISK|grep type|awk '{print $2 $3}'`
echo "/dev/dsk/$DISK \t$SIZE\t$TYPE"
fi
done

[A. Clay Stephenson]

Hi:

My contribution has to be my universal date engine, 'caljd.sh'. It converts a calendar date (or todays's date) to a true (well, almost) Julian day and also does the reverse. It then becomes trivially simple to calculate the number of days between any two dates.

Examples:
# What is the date in MM DD YYYY format 100 days from now?
DATE=$(caljd.sh $(caljd.sh -n 100))
echo "New Date = ${DATE}"

# What is the date in MM DD YYYY format 100 days from now unless that falls on a weekend?
DATE=$(caljd.sh $(caljd.sh -n 100 -x 0 -x 6))
echo "New Date = ${DATE}"

# What is the date in MM DD YYYY format 100 days from now unless that falls on a weekend?
DATE=$(caljd.sh $(caljd.sh -n 100 -x 0 -x 6))
echo "New Date = ${DATE}"

# What is the date in YYYY-MM-DD format 20 days previous unless that fell on a Friday?

DATE=$(caljd.sh -S '-' -y $(caljd.sh -p 20 -x 5))
echo "New Date = ${DATE}"

caljd.sh -u gives full usage.

Regards, Clay

[Robert Gamble]

This script can be used to check the output of a 'stat' type command regularly or in a cron.

*NOTE* : Script must be edited for local use!
***********************************************
#!/usr/bin/sh
COMMAND="/$DIR1/$Stat_Like_Command"
LOG_DIR="/$DIR2"

$COMMAND > $LOG_DIR/$COMMAND.current
if [ -e $LOG_DIR/$COMMAND.current ]
then
/usr/bin/diff $LOG_DIR/$COMMAND.current $LOG_DIR/$COMMAND.normal > $LOG_DIR/$COMMAND.diff
if [ -s $LOG_DIR/$COMMAND.diff ]
then
echo "Possible Issue with $COMMAND" | mailx -S $COMMAND your@pager.email.com
cat $LOG_DIR/$COMMAND.diff
else
echo "$COMMAND is OK"
fi
else
echo "$COMMAND could not execute"
fi
***********************************************

[Mark Greene_1]

when you need to extract a range of lines from a file and grep won't get them all:

# pg extract
#!/bin/ksh
# 10/08/01
# mark greene
# sed -n 'StartLineNumber,EndingLineNumber' source_file > target_file
# $1=source file, $2=starting line, $3=ending line, $4=target file

if [ $# -lt 4 ]; then
echo "usage: extract source starting_line ending_line target"
exit
fi

SOURCE=$1
START_PAGE=$2
END_PAGE=$3p
TARGET=$4
QUOTE="'"

CMD="-n $QUOTE$START_PAGE,$END_PAGE$QUOTE"

eval "sed $CMD $SOURCE >$TARGET"

exit $?

[Sanjay_6]

Hi,

Here is another one i had downloaded from somewhere, but don't use. thought someone might find it useful.

Regards
sanjay