>keytool -importcert -help
keytool -importcert [OPTION]...

Imports a certificate or a certificate chain

Options:

 -noprompt                       do not prompt
 -trustcacerts                   trust certificates from cacerts
 -protected                      password through protected mechanism
 -alias <alias>                  alias name of the entry to process
 -file <filename>                input file name
 -keypass <arg>                  key password
 -keystore <keystore>            keystore name
 -storepass <arg>                keystore password
 -storetype <storetype>          keystore type
 -providername <providername>    provider name
 -providerclass <providerclass>  provider class name
 -providerarg <arg>              provider argument
 -providerpath <pathlist>        provider classpath
 -v                              verbose output

Use "keytool -help" for all available commands