1 switch case

# Number indentity
echo enter num
read x
case $x in
1) echo one
    ;;
2) echo two
    ;;
3) echo three
    ;;
*)  echo default
    ;;
esac

#output
enter num
2
two



# Range based
echo enter any character
read x
case $x in
[a-z]) echo chotta alphabet
    ;;
[A-Z]) echo bda alphabet
    ;;
[0-9]) echo single digit number
    ;;
[0-9][0-9]) echo double digit number
    ;;
*)  echo default
    ;;
esac

# Output
enter any character
55
double digit number

# string base
echo enter any word
read x
case $x in
'svim') echo clg
    ;;
'suresh') echo my love
    ;;
'bca') echo kr rha hu
    ;;
'ramesh') echo suresh alternative
    ;;
*)  echo match nhi hua hai defaulth hai
    ;;
esac

# Output
enter any word
suresh
my love