Shell Programming and Scripting

for d in `echo boy,girl | tr ',' '\n'`
do

for i in `echo alex,rose | tr ',' '\n'`
                do
echo $d '  '  $i
done
done

#! /bin/bash

x=( "boy" "girl" )
y=( "jack" "rose" )

noX=${#x[@]}
noY=${#y[@]}

if [ $noX -gt $noY ]
then
    until=$noX
else
    until=$noY
fi

for (( i=0; i<$until; i++ ))
do
    echo "${x[i]} ${y[i]}"
done

cat <<EOF > $0.tmp
example :-
Attribute :- Boy,Girl,DontKnow
Names :- Alex,Rose,Yo
EOF

oifs="$IFS"

# save flds to array
while read fld deli values
do
        case "$fld"  in
                Attribute) IFS="," attr=($values) ;;
                Names) IFS="," names=($values) ;;
        esac
        IFS="$oifs"
done < $0.tmp

flds=${#attr[*]}
flds2=${#names[*]}
# max fld
((flds < flds2)) && flds=$flds2

# print out arrays
i=0
while ((i<flds))
do
        echo "${attr[$i]} ${names[$i]}"
        ((i+=1))
done

rm -f $0.tmp