Unexepcted behavior from read and cat

Chuck Swiger cswiger at mac.com
Mon May 12 19:08:51 UTC 2008


On May 12, 2008, at 11:59 AM, Paul Schmehl wrote:
> WTF?  Why do these utilities, which usually read all the lines in a  
> file now only work once when run through dig?  Is there a way to  
> feed dig a list of IPs and have it return each and every one of them?

The dig which comes with BIND 9 supports doing multiple queries; older  
versions of dig apparently will only do a single query.  Try doing  
"dig -f iplist" for batch-mode multiple queries, but trying to feed  
other options (like +short) will cause it to not output anything when  
I just tested.

(The command-line argument handling of this utility is wildly  
nonstandard and sometimes plainly broken, IMO....)

-- 
-Chuck



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