Shell Programming and Scripting

#!/bin/ksh
compare()
{
cat $1>t1
cat $2>t2
cy1=`cut -f13 -d'Ç' t1`
cy2=`cut -f13 -d'Ç' t2`
print "cy1 = $cy1"
print "cy2 = $cy2"
if [ $cy1 = $cy2 ]
then
  echo "yes"
else
  echo "no"
fi
}
 
d3=$(compare temp1.rm temp2.rm)
echo $cy1 <== Here the value assigned inside compare() should be displayed.

#!/bin/ksh
compare()
{
cat $1>t1
cat $2>t2
cy1=`cut -f13 -d'Ç' t1`
cy2=`cut -f13 -d'Ç' t2`
if [ $cy1 = $cy2 ]
then
  echo "yes"
else
  echo "no"
fi
}
d3=$(compare temp1.rm temp2.rm)
print $d3 <== Prints "yes" as cy1 and cy2 are equal.
echo $cy1 <== Is null.

compare()
{
   cy1=`cut -f13 -d'Ç' $t1`
   cy2=`cut -f13 -d'Ç' $t2`
   if [ $cy1 = $cy2 ]
   then
      echo "yes, values='$cy1/cy2'"
   else
      echo "no, values='$cy1/$cy2'"
   fi
}
d3=$(compare temp1.rm temp2.rm)
print "d3='$d3'"
print "values='$cy1/$cy2'"

#!/bin/ksh93

compare()
{
   var=3
}

d=$(compare)
echo "Var=${var}"

compare
echo "Var=${var}"