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How do write using variables

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Top Forums Shell Programming and Scripting How do write using variables
# 1  
Old 05-04-2011
variables coding using INSTHOME
Hello Team,
I have the following line in a .sh file .That means if we add my file.sh file to crontab .The crontab will read the first line where the db2 profile is installed.Can some body help me how to recode this using a variable ?

That means the below path is static to a perticular machine.Incase if i run the same script on another machine the echo $INSTHOME will give another path.so i want to use variable instead of hard code path. can some body help me ?

Code:
#!/bin/ksh
. /db2/inst1/sqllib/db2profile

Later i tried

Code:
if [ -f $INSTHOME/sqllib/db2profile ]; then
    . $INSTHOME/sqllib/db2profile
fi

even this is not working any suggesions?
Last edited by rocking77; 05-04-2011 at 12:30 PM..
# 2  
Old 05-04-2011
What about something like this
Code:
## First line always states the shell you are using.
#!/bin/ksh

## Get the name of the machine.
MACHINE=$(uname -n)

## Set INSTHOME based on the machine.
case $MACHINE in
   'Jerry') INSTHOME="/db2/inst1"
            ;;
  'George') INSTHOME="/db2/inst2"
            ;;
             # Always code for an unexpected value.
         *) print "Unknown machine [$MACHINE]"
            exit 1
            ;;
esac

## If we are here then a machine was found so set the environment.
. $INSTHOME/sqllib/db2profile

## More commands follow...

# Always exit with a return code back to the shell.
exit 0

# 3  
Old 05-04-2011
Hi Gary,
Thanks for your reply.I tried this in my script .

Code:
if [[ -f $INSTHOME/sqllib/db2profile ]] ; then
    . $INSTHOME/sqllib/db2profile

instead of

Code:
. /db2/db9sr073/sqllib/db2profile

.

in my script the problem is the earlier code is not running when i use this file.sh in crontab.but if i run file.sh using ./file.sh its running perfectly.Any clue why the earlier code is not working when i use this and crontab it ?
# 4  
Old 05-04-2011
Where is INSTHOME being set?
I do not believe it is being set in the environment of the crontab-run version. crontab runs with the permission level of the id that created the job, but not their environment if I remember correctly.
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