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Top Forums UNIX for Dummies Questions & Answers Variable with @ sign is driving me crazy Post 302415919 by MrEddy on Friday 23rd of April 2010 05:20:23 PM
Old 04-23-2010
Variable with @ sign is driving me crazy

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?
 

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CLOCK(1)						      General Commands Manual							  CLOCK(1)

NAME
clock - display the time in an icon or window SYNOPSIS
clock AVAILABILITY
This command is available with the OpenWindows environment. For information about installing OpenWindows, refer to the OpenWindows Instal- lation and Start-Up Guide. DESCRIPTION
clock is an OpenWindows XView utility that displays the current time in a window or icon. When the window is open, clock can display the time in either analog or digital format. The clock window is scalable in either format. USAGE
When the clock window is open, it has a floating menu from which you can bring up a property window. From this property sheet, you can modify the display of the tool by selecting either the Analog or Digital choice box. Seconds: On the analog version, this selection starts a second hand on the face of the clock. On the digital version, it adds two dig- its to the digital readout. Date: Turns on a date display for both analog and digital versions of clock. BUGS
If you reset the system time, clock will not reflect the new time until you change its window state from open to icon, or vice versa. To reset the system time, see date (1V). The date display does not go well with the round clock face. Occasionally, when clock is uncovered, the face will be visually corrupted. Use the Refresh button from the frame menu to repair. 11 June 1990 CLOCK(1)
All times are GMT -4. The time now is 09:21 AM.
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