You can open a pipe to your other process like a file handle:

# Open the handle
open my $handle, '|-', 'java -jar jenkins-cli.jar -s http://localhost:
+8080/ create-view abcd' or die "Couldn't open pipe: $!";

# Use it like a file
print $handle "Hello"; # Will print "Hello" to the standard input of t
+he java process
[download]

This means that the pass phrase will also have to be written through perl, something like this should work: print $handle scalar <STDIN>; # print to handle one line from the console

You should have a look at open and perlipc for more information on handles and inter-process communications.