On Thu, Aug 15, 2002 at 11:36:23AM -0700, John Koenig wrote:
> >On Thu, Aug 15, 2002 at 12:49:04PM -0400, Jason Greenberg wrote:
> >> Does anyone know what could cause this output?  I am trying to debug my
> >> setup with a PowerVault 128T / Linux Redhat 7.3
> >>
> >>
> >> bash-2.05a$ /usr/lib/amanda/chg-zd-mtx -info
> >> /usr/lib/amanda/chg-zd-mtx: [: : integer expression expected
> >> /usr/lib/amanda/chg-zd-mtx: [: -lt: unary operator expected
> >>   16 1 1
> 
> 
> I'll take a chance of clarifying instead of muddying this issue....
> From what I have been learning from some FINE people on this list 
> about shell scripting is... that the error above is likely caused by 
> a string of length zero as one of the variables in the test.

This is likely true, though the first one "integer expression expected"
could be caused by a word where a number is expected or the empty string.

> If the 
> source was written with by prepending 'x' on both variables such that 
> the value of the variables would be concatenated with the 'x', the 
> broken test would not likely occur. I think this explanation is 
> accurate but it needs review.

As both cases above are expecting integers putting an "x" into a currently
empty integer field would change the error, not correct it.

-- 
Jon H. LaBadie                  jon AT jgcomp DOT com
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