gistfile1.txt

#!/bin/sh

export KEYSTORE_PASSWORD="changeit"
export KEY_PASSWORD="changeit"

openssl pkcs12 -export -in 'yourcer.cer' -inkey *.key -out file.p12 -passin pass:"$KEYSTORE_PASSWORD" -passout pass:"$KEYSTORE_PASSWORD"
keytool -importkeystore -srckeystore file.p12 -destkeystore keystore -deststoretype JKS -deststorepass "$KEYSTORE_PASSWORD" -destkeypass "$KEY_PASSWORD" -srcstorepass "$KEYSTORE_PASSWORD" -srcalias 1 -destalias server-cert

# validate
keytool -list -v -keystore keystore -keypass "$KEY_PASSWORD" -storepass "$KEYSTORE_PASSWORD"%