Modify change_password to return a status, true(1) if it succeeded or false(0) otherwise. Then check the return value in the main loop: 

my @fail_servers;
for my $server (@servers) {
# do your thing with $server

    push @failed_servers, $server unless change_password($server);

}

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In reply to Re^3: How do I get expect.pm to ignore special characters? by sn1987a
in thread How do I get expect.pm to ignore special characters? by amagana

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