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  1. or download this
    docker run -d --name xxxyyyzzz-blah alpine /bin/ash -c "/usr/bin/tail 
+-f /dev/null"
  2. or download this
    use v5.38;
`docker run -d --name xxxyyyzzz-blah alpine /bin/ash -c "/usr/bin/tail
+ -f /dev/null"`;
  3. or download this
    use v5.38;
use IPC::Run3;
...
my $success = run3($cmd, undef, \$out, \$err);

print $success; # prints 1