The file test has the following…
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:~$
```for i in cat test; do host ns$i.he.net; done
**Output**
```:~$ for i in `cat test`; do host ns$i.he.net; done
ns1.he.net has address 216.218.130.2
ns2.he.net has address 216.218.131.2
ns2.he.net has IPv6 address 2001:470:200::2
ns3.he.net has address 216.218.132.2
ns3.he.net has IPv6 address 2001:470:300::2
ns4.he.net has address 216.66.1.2
ns4.he.net has IPv6 address 2001:470:400::2
ns5.he.net has address 216.66.80.18
ns5.he.net has IPv6 address 2001:470:500::2
:~$