echo enter any character:
read ch
case $ch in
[0-9])
echo you entered digit
;;
[A-Za-z])
echo you enter alphabet
;;
*)
echo you entered special characterecho enter any character:
read ch
case $ch in
[0-9])
echo you entered digit
;;
[A-Za-z])
echo you enter alphabet
;;
*)
echo you entered special character
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