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Dynamic Variable data problem

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# 1  
Old 05-21-2013
Wrench Dynamic Variable data problem
Hi,

I am trying to call this variable declared globally STATE=`/opt/Mic*/bin/mstrctl -s IntelligenceServer gs | grep "state" | cut -f2 -d'<' | cut -f2 -d'>'` which extracts the status of a microstrategy server inside the loop. But once the value is assigned initially in the begining, it is not changing as the status of the server changes. Any help on assigning dynamic values to a variable !

Code:
#################################################################################
#Fixing local variables and declaration part
STATE=`/opt/Mic*/bin/mstrctl -s IntelligenceServer gs | grep "state" | cut -f2 -d'<' | cut -f2 -d'>'`
#Fixing Font Colours#
END="\033[0m"
CYAN="\\033[40m\033[36m"
SERSTAT=`echo -e " The I-Server is in $CYAN $STATE $END state !"`
#################################################################################
#ServerStop
ServerStop()
{
        if [ $STATE = "running" ]
                then
						echo -e " $SERSTAT "
                        read STOP
                        if [ "$STOP" = "y" ]
                                then
                                        Emailalert
                                else
                                        ServerContinue
                        fi
        elif [ $STATE = "stopped" ]
                then
                        echo -e " The I-Server is in $CYAN $STATE $END state !"
                        ServerContinue
		elif [ $STATE = "stopping" ]
                then	
						echo -e " The I-Server is in $CYAN $STATE $END state !"
                        echo -e " $WRNEND "
                        ServerContinue
        else
                echo -e " $SERVMAINT "
                ServerContinue
        fi
}


Thanks,
Richard
Last edited by Franklin52; 05-21-2013 at 03:04 AM.. Reason: Please use code tags
# 2  
Old 05-21-2013
Let me see if I have this straight. You define the variables STATE, END, CYAN, and SERSTAT in a shell script. Then you define a function named ServerStop that uses the values of the above variables that were defined before the function is defined (and those values are never updated). The script never invokes the function it has defined.

What output did you expect to be produced by defining a function that you never call?

If you want the value of STATE to change, you need to redefine the value of the variable.
This User Gave Thanks to Don Cragun For This Post:
kavinmjr
# 3  
Old 05-21-2013
Hi,

I have only posted the part of the code that has the issue. Its a very lengthy annoying script that i wrote. The functions part is working fine with me and have got trouble issue with the Variable assigning. Let assume that the function is called successfully. Initially the variable STATE="Running" and first time when the variable is referenced . It fetches the values as running as expected.Once the loop goes into the second round and the command in the variable should fetch 'stopped' but its not doing so . If you need the full code . Please let me know

TIA
# 4  
Old 05-21-2013
Quote:
Originally Posted by kavinmjr
Hi,

I have only posted the part of the code that has the issue. Its a very lengthy annoying script that i wrote. The functions part is working fine with me and have got trouble issue with the Variable assigning. Let assume that the function is called successfully. Initially the variable STATE="Running" and first time when the variable is referenced . It fetches the values as running as expected.Once the loop goes into the second round and the command in the variable should fetch 'stopped' but its not doing so . If you need the full code . Please let me know

TIA
You only show that the variable STATE is set once. No matter how many times you expand $STATE, its value will not change unless you set STATE again. Show us the other lines in your script that set STATE to new a new value.
# 5  
Old 05-21-2013
Hi,

This is the full code. Can we substitute eval to get the results ?

Code:
#! /usr/bin/ksh
#################################################################################
# MSTR Server Restart/Start/Stop Utility
# Created by : Kavin Richard(krich4)
# Date: 20130515
#################################################################################
#Fixing local variables and declaration part
LOG_PATH=/home/itmstr/Autologs
LOG_FILE=$LOG_PATH/Status$(date +%Y-%m-%d""%H:%M:%S).log
EMAIL_REC="kavin.richard@aexp.com"
DT=`date +%Y-%m-%d" "%H:%M:%S`
STATE=`/opt/Mic*/bin/mstrctl -s IntelligenceServer gs | grep "state" | cut -f2 -d'<' | cut -f2 -d'>'`
START=`/opt/Mic*/bin/mstrctl -s IntelligenceServer start`
STOP=`/opt/Mic*/bin/mstrctl -s IntelligenceServer stop`
INIT="0"
CONT="n"
STOP="n"
SERVERIP=`hostname -i`
SERVERNAME=`uname -n`
ACTION="DEFAULT"
TEAM="GLMSTR"
#Fixing Font Colours#
END="\033[0m"
RED="\\033[40m\033[1;31m"
GREEN="\\033[40m\033[1;32m"
CYAN="\\033[40m\033[36m"
#Fixing system response messages#
WRNOPT="$RED ::WARNING:: Please enter the correct option number between [0-4] !!! $END"
WRNSTART="$RED ::WARNING::The I-Server is already RUNNING/STARTING state! Please try again !!! $END"
WRNSTARTCNT="$RED ::WARNING::Do you want to continue with Starting the I-Server (y/n) ? $END"
WRNEND="$RED ::WARNING::The I-Server is already in STOPPED/STOPPING state. Please check and try again !!!  $END"
WRNENDCNT="$RED ::WARNING::Do you want to continue with Stopping the I-Server (y/n) ? $END"
OPTCNT="$GREEN Would you like to Restart/Start/Stop I-Server ? (y/n) $END "
SERVMAINT="$RED STILL UNDER MAINTANANCE. Please select proper options ! $END"
SERSTAT=`echo -e " The I-Server is in $CYAN $STATE $END state !"`
#################################################################################
#ServerContinue
ServerContinue()
{
echo -e " $OPTCNT "
read CONT
echo -e "\n"
        if [ "$CONT" = "y" ]
            then
                Serverinit
        else
                exit
        fi
}
#################################################################################
#ServerStop
ServerStartStop()
{
        if [ "$ACTION" = "STATUS" ]
            then
                echo -e " The I-Server is in $CYAN $STATE $END state !"
                ServerContinue
        elif [ "$ACTION" = "STOPPING" ]
                then
                        ServerStop
        else
                echo -e "$WRNOPT"
                ServerContinue
        fi
}
#################################################################################
#ServerStop
ServerStop()
{
        if [ $STATE = "running" ]
                then
						echo -e " $SERSTAT "
                        echo -e " $WRNENDCNT"
                        read STOP
                        if [ "$STOP" = "y" ]
                                then
										$STOP
                                        ServerStopChk
                                else
                                        ServerContinue
                        fi
        elif [ $STATE = "stopped" ]
                then
                        echo -e " $WRNEND "
                        ServerContinue
		elif [ $STATE = "stopping" ]
                then	
						echo -e " The I-Server is in $CYAN $STATE $END state !"
                        echo -e " $WRNEND "
                        ServerContinue
        else
                echo -e " $SERVMAINT "
                ServerContinue
        fi
}
#################################################################################
#ServerStopChk
ServerStopChk()
{
        echo -e " The I-Server is in $CYAN $STATE $END state ! Please wait... "
        sleep 30 #sleeps for 5 seconds
        if [ $STATE = "running" ]
                then
                        echo -e " The I-Server is in $CYAN $STATE $END state ! Please wait... "
                        sleep 5 #sleeps for 5 seconds
                        ServerStopChk
		elif [ $STATE = "stopping" ]
                then
						echo -e " The I-Server is in $CYAN $STATE $END state ! Please wait... "
                        sleep 5 #sleeps for 5 seconds
                        ServerStopChk
		elif [ $STATE ="stopped" ]
			then
                echo -e " The I-Server has STOPPED."
                echo -e " The I-Server is in $CYAN $STATE $END state ! "
                ServerContinue
		else
			echo -e " $SERVMAINT "
            ServerContinue
        fi
        ActionCheck
}
#################################################################################
#ActionCheck
ActionCheck()
{
        if [ $ACTION = "STOPPING" ]
                then
                        ServerContinue
        else
                ServerContinue
        fi
}
#################################################################################
#ServerInput
ServerInput()
{
ACTION=""
        if [ "$INIT" = '1' ]
                then
                        ACTION="STATUS"
						echo $ACTION
                        ServerStartStop
						elif [ "$INIT" = '2' ]
                then
                        ACTION="STOPPING"
						echo $ACTION
                        ServerStartStop
                        exit
        elif [ "$INIT" = '0' ]
                then
                        exit
        else
                echo -e  " $WRNOPT "
                exit
        fi
ServerInput
}
#################################################################################
#Serverinit
Serverinit()
{
        echo -e "$GREEN /************ MSTSR Server Restart/Start/Stop Utility  ************/ $END"
    echo -e "   "Check status of the I-Server press : 1
        echo -e "   "Stop the I-Server"                 " : 2
        echo -e "   "To Exit"                           " : 0
    echo -e "$GREEN /******************************************************************/ $END "
        read INIT
ServerInput
}
#################################################################################

#Intiation of script
Serverinit

Last edited by Franklin52; 05-21-2013 at 03:05 AM.. Reason: Please use code tags
# 6  
Old 05-21-2013
Now that you have shown us your entire script, I repeat. You set STATE on the 11th line of your script. That sets the value it will have for the rest of your script until you use STATE-xomething or read ... STATE ... or something similar to assign it a new value. Nothing in your script changes the value of STATE after it is set the first time.

PS. In you 1st posting you said STATE was being set in a loop, but there is no loop in your program. (I didn't follow all of the function calls; you may have infinite recursion, but you do not have a loop. And nothing inside the possible recursion boundaries resets the value of STATE unless you're not showing us the entire script.)
Last edited by Don Cragun; 05-21-2013 at 01:51 AM..
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