Can anyone give me an example of an if and case traversing an array in bash script? I'm just setting an example with for what's to list the items .. I'm trying this way but it's not right. ex:
v1=("sim" "s" "y" "yes" "")
v2=("não" "no" "nao")
read -p "Digite sua opção [S] [n]" RESP
case $RESP in
$V1)
echo "Opção sim"
;;
$V2)
echo "Opção não"
;;
*)
echo "Não conheço"
;;
esca
You do not need juggling with arrays , the syntax of case/esac allows you to test a list of values separated by | , see:
#!/bin/bash
read -p "Digite sua opção [S/N]: " RESP
case ${RESP,,} in
"sim"|"s"|"y"|"yes"|"")
echo "Opção sim"
;;
"não"|"n"|"nao"|"no")
echo "Opção não"
;;
*)
echo "Não conheço"
;;
esac
However, if using arrays is a mandatory prerequisite, there is a solution using the if/elif/else/fi conditionals with the =~ operator, which checks whether a specific value is contained within an array :
#!/bin/bash
v1=("sim" "s" "y" "yes" "")
v2=("não" "no" "nao" "n")
read -p "Digite sua opção [S/N]: " RESP
if [[ "${v1[@]}" =~ "${RESP,,}" ]]; then
echo "Opção sim"
elif [[ "${v2[@]}" =~ "${RESP,,}" ]]; then
echo "Opção não"
else
echo "Não conheço"
fi
Notice that ${RESP,,} causes all the letters contained in the $RESP variable to be read in lowercase ), making it indifferent whether what the user typed was lowercase ( lowercase ) or uppercase ).