Unexepcted behavior from read and cat
jdowdy at ncircle.com
Tue May 13 18:55:53 UTC 2008
I think this one wins for brevity.
On 5/12/08 1:55 PM, "RW" <fbsd06 at mlists.homeunix.com> wrote:
> On Mon, 12 May 2008 14:08:06 -0500
> Paul Schmehl <pauls at utdallas.edu> wrote:
>> --On Monday, May 12, 2008 13:59:47 -0500 Paul Schmehl
>> <pauls at utdallas.edu> wrote:
>>> Sure, I can edit the file and prepend +short -x to each line, but
>>> by then I might as well just do them individually.
>>> What am I missing?
>> Never mind.
>> This worked.
>> (read line; dig +short -x `echo $line`; while read line; do dig
>> +short -x `echo $line`; done) < iplist
> I tend to use "xargs -n1" with dig e.g
> cat iplist | xargs -n1 dig +short -x
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Johan Dowdy - CISSP
Senior Systems Administrator
nCircle Network Security
"Any sufficiently advanced technology is indistinguishable from magic."
-- Arthur C. Clarke
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