[kwlug-disc] Outsmarted by bash && if

William Park opengeometry at yahoo.ca
Wed Apr 7 21:06:47 EDT 2010


On Wed, Apr 07, 2010 at 08:21:12PM -0400, Lori Paniak wrote:
> Dear very clever list, 
> 
> I am trying to write a simple bash script to (re)start a process given
> the logical "and" of two conditions.  I think it should look like this:
> 
> if [ -n "$STICK" ] && [ -n "$STATUS" ]; then
> 	      /sbin/ifup ppp0
> fi 
> 
> When STICK and STATUS are non-empty strings I would like ifup to run.  
> This works if I just use one condition, but I cannot figure out the
> correct syntax for the AND-ed case.  I've tried (seemingly) all
> combinations and locations of brackets without success.
> 
> Anyone out there care to point out my trivial error(s)?
> 
> Thanks!
> Lori

Actually, that should work.

-- 
William




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