UNIX for Dummies Questions & Answers

Ok so I am working on a command that is going to do a Dig @ a certain IP address which is enclosed in a variable.

Now I thought I had this figure out because it works. The problem is that it does not ALWAYS work.

the variable is IP=192.168.1.1

the commands I have tried are

Code:

dig @${IP} 
dig @"{$IP}"
dig '@'$IP
dig '@'"$IP"

I simply do not get it. All of these seem to work but not all the time. I'll go into one person box and it works fine and then the next one will not like it. Seems that the ones who do not like it are 1 version update behind the ones that do. But, I can't tell whats different. The bash version is the same and the freebsd version is the same. So somewhere somehow its not liking my formatting.

If I take the variable away and just do the command with the IP in there typed by hand it works fine.

Do you guys know what format would be the most universally accepted and least likely to be problematic?

What error messages do you get? What shells are you logging into? You could try escaping the @ with a \.

*sigh* i'm retarded.. i wasn't using the full pathname for some files called later in the command.

So i was in the wrong directory and THAT was my issue. DOH!