Shell Programming and Scripting

abc:def:ghi
jkl:mno: pqr
123:456:789

abc
jkl
123

$ cat infile
abc:def:ghi
jkl:mno: pqr
123:456:789

$ set -- $(cut -d: -f1 infile)

$ echo $1
abc

$ echo $2
jkl

$ echo $3
123

i=0
while read line
do
  array[$i]=${line%%:*}
  echo ${array[$i]}
  i=$((i+1))
done < file.txt

Chocolate:Supermarket A:5
Ice Cream:SuperMarket B:7
Banana:Supermarket B:3

Ice Cream, Supermarket B, $7
Banana, Supermarket B, $3

productcount=`grep -c ":Supermarket B:." infile.txt`
echo $productcount

2

price=`grep ".:Supermarket B:." infile.txt | cut -f3 -d ":"`
echo $price

7
3

product=`grep ".:Supermarket B:." infile.txt | cut -f1 -d ":"`
echo $product

Ice Cream
Banana

for (( i=0; i<$productcount; i++ ))
do
echo " ${product[$i]} Supermarket B \$${price[$i]}"
done

awk -F: '/Supermarket B/{$3="$"$3;print}' OFS=\, file | sed 's/,/, /g'

grep -i 'Supermarket B' infile.txt | sed 's/:/, /;s/:/, \$/'

# cat infile2
Chocolate:Supermarket A:5
Ice Cream:SuperMarket B:7
Banana:Supermarket B:3
# grep -i 'Supermarket B' infile2 | sed 's/:/, /;s/:/, \$/'
Ice Cream, SuperMarket B, $7
Banana, Supermarket B, $3

awk -F: '$2==v && $3="$"$3' v="Supermarket B" OFS=', ' file