Re: [Help-bash] dumb person's looping

[Greg Wooledge]

On Wed, Jan 07, 2015 at 08:28:01AM -0600, address@hidden wrote:
> 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

http://mywiki.wooledge.org/BashFAQ/089

Brief explanation: ssh and read are both reading from the same stdin
stream.  ssh is greedy and grabs all the data.  The wiki page shows
some workarounds.