Assuming sh- shells (sh, ksh, bash, zsh)
Code:
#
# Setting up java policy
#
set pfile="$HOME/.java.policy"
>$pfile echo /* Java policy */
>>$pfile echo grant \{
>>$pfile echo permission java.security.AllPermission\;
>>$pfile echo \}\;
echo Java policy setup done \!
echo -n "Type enter to continue:"
read