#!/usr/bin/expect -f set timeout 10 spawn $env(SHELL) match_max 100000 send -- "firejail --name=test-dns --net=eth0 --dns=1.2.3.4 --dns=2.3.4.5 --dns=3.4.5.6\r" expect { timeout {puts "TESTING ERROR 1\n";exit} "Child process initialized" } sleep 1 spawn $env(SHELL) send -- "firejail --dns.print=test-dns\r" expect { timeout {puts "TESTING ERROR 2\n";exit} "nameserver 1.2.3.4" } expect { timeout {puts "TESTING ERROR 2\n";exit} "nameserver 2.3.4.5" } expect { timeout {puts "TESTING ERROR 2\n";exit} "nameserver 3.4.5.6" } after 100 puts "\nall done\n"