Shell Programming and Scripting

var1=test1
setA=testA

if
   ...
   touch $setA/$var1 
   ...
fi

var1=test1
var2=test2
var3=
var4=test4

setB=testB
setC
setD=testD


if
   ...
   touch $setX/$varX 
   ...
fi

set | grep -E '^var[0-9]+=' | while IFS== read VAR VAL
do
 if [ ! -z $VAL ]; then
    touch $VAL
 fi
done

SensorID1='test1'
SensorValue1='watt'
SensorID2='test2'
SensorValue2='liter'

set | grep -E '^SensorID[0-9]+=' | while IFS== read VAR SensorID 

do
 if [ ! -z $SensorID ]; then
    touch $SensorID.$SensorValue
fi
done

set | grep -E '^SensorID[0-9]+=' | while IFS== read VAR SensorID 
do
 SensorValue=$(eval echo \$${VAR/SensorID/SensorValue})
 if [ ! -z $SensorID ] && [ ! -z $SensorValue ] ; then
    touch $SensorID.$SensorValue
fi
done