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Adding logging feature to ksh script?

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Top Forums Shell Programming and Scripting Adding logging feature to ksh script?
# 1  
Old 09-13-2012
Adding logging feature to ksh script?
Good morning all,

I have a ksh script that I would like to log all "Terminal" out to a log file. I have tried several different methods to no avail! Below is my script and any advice or assitance would be great! The script works great but can not figure out how to log all outputs to a log file.
Code:
###################################################################################
## Global Variables
###################################################################################
localHost=$(hostname)
env="Env"
project="EDR"
wmbversion="7.0"
brokerListFile=
brokerExGrpListFile=
queuelist=/var/mqm/scripts
IFS=","
JMSDIR=/usr/mqm/java/bin
wmbversion="7.0"
wmqversion="7.0"
wmbversion="7.0"
wmqversion="7.0"
scriptfiles="/downloads/APP_Software/IBM/wmq_wmb/scripts"
mqmvardir="/var/mqm"
mqmlogdir="/var/mqm/log"
mqmerrdir="/var/mqm/errors"
scriptdir="/var/mqm/scripts"
logdir="/opt/IBM/install_logs/wmq_wmb"
logfile="config.log"
LOG_FILE=/tmp/${0##*/}.log
_DEBUG="on"
##################################################################################
## Debug Function
##################################################################################
DEBUG()
{
[ "$_DEBUG" == "on" ] && $@ || :
}
##################################################################################
## Logging Function
##################################################################################
 
#####################################################################################
## Main Routine
#####################################################################################
main() {
DEBUG echo "Status: Entering Main Routine.. "
LogMsg *
createJMSEnv *
buildbrk *
DEBUG echo "Status: Exiting Main Routine.. "
}
LogMsg() {
 # Logging setup 
exec 3>$1 4>$2
trap 'exec 2>$4 1>$3' 0 1 2 3
exec 1>$LOG_FILE 2>$1
}
createJMSEnv() {
DEBUG echo "Status: Entering createJMSEnv.. " 
cd $JMSDIR
perl -p -i -e "s/file:\/C:\/JNDI-Directory/file:\/var\/mqm\/JNDI-Directory/g" JMSAdmin.config
cd $mqmvardir
mkdir -p JNDI-Directory
chmod 777 JNDI-Directory
cd $scriptdir
DEBUG echo "Status: Exiting createJMSEnv.. "
}
buildbrk() {
 
id=`whoami | awk '{ print $1 }`
if [ $id != "mqm" ]
then
   DEBUG echo "setting wmb environment for command execution"
   portNumber="1414"
   `su - mqm -c`
else
   mqsi=/opt/IBM/mqsi/$wmbversion/bin
   . $mqsi/mqsiprofile
   $mqsi/mqsicreatebroker $bkrname -q $qmname
   runmqsc $qmname <$queuelist/queuebuild.in 
   echo "DEFINE LISTENER($qmname.TCP) trptype(tcp) port(1414) control(qmgr)" | runmqsc $qmname
   echo "START LISTENER($qmname.TCP)" | runmqsc $qmname
   echo "DEFINE CHANNEL(SYSTEM.ADMIN.SVRCONN) CHLTYPE(SVRCONN) TRPTYPE(TCP)" | runmqsc $qmname 
   wmb=`mqsilist -a |cut -d "'" -f2 |grep EDR`
   echo $wmb
   for i in $wmb
   do
      `mqsistart $i`
   done
fi
}
####################################################################################
## Entry Point
####################################################################################
#Checking environment variables
if [ ! "$1" ];
then
   DEBUG echo "Failure: You must provide the environment"
   DEBUG echo "exiting with value 1"
   exit 1
else
   qmname="${project}_$1_QM"
   bkrname="${project}_$1_BRK"
   DEBUG echo "Status: Queue Manager to create = $qmname"
   DEBUG echo "Status: Broker to create - $bkrname"
   DEBUG echo "Status: Calling Main Routine ... "
   main $*
   DEBUG echo "Exit: Exiting Main Routine and Terminating script ... "
   exit 0
fi

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Mod Comment Please view this code tag video for how to use code tags when posting code and data.
Last edited by vbe; 09-13-2012 at 12:44 PM..
# 2  
Old 09-13-2012
What wasnt working?
# 3  
Old 09-13-2012
When the script is executed, it does not log anything that goes on within the script. And no file is generated in the /tmp directory. So the logging function does not .... well log anything??
# 4  
Old 09-13-2012
I'm sorry I don't have the time to read your script now, but... you aren't looking for the script command, are you?

Code:
SCRIPT(1)                          BSD General Commands Manual                          SCRIPT(1)

NAME
     script - make typescript of terminal session

SYNOPSIS
     script [-a] [-c COMMAND] [-e] [-f] [-q] [-t] [file]

DESCRIPTION
     Script makes a typescript of everything printed on your terminal. [...]

--
Bye
# 5  
Old 09-13-2012
I am not 100% certain what is going on in your debug function
Code:
DEBUG()
{
[ "$_DEBUG" == "on" ] && $@ || :
}

... but, based on what you posted:

Where do you ever actually direct your output to a log file? LogMsg() is built but never called, and no output is passed to it either.

You can do something such as the following:

Code:
output(){
 print "$@" >&1 && print "$@" >&3
}
 
LOGFILE=mylogfile.log
exec 3> $LOGFILE
 
output " This will get output to your logfile"

or the plain old method:

Code:
 
LOGFILE=mylogfile.log
echo "This gets sent to a log file" > $LOGFILE

I don't know if this'll answer your question, but I hope it helps!
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