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[Help-bash] dumb person's looping

From: kqt4at5v
Subject: [Help-bash] dumb person's looping
Date: Wed, 7 Jan 2015 08:28:01 -0600 (CST)
User-agent: Alpine 2.02 (DEB 1266 2009-07-14)

Would y'all explain in simple terms what is going wrong here

while read l; do echo "checking ${l}"; ssh ${l} ls; done <list_of_servers

After the first server the loop terminates


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