Re: [PLUG] check for existing user.

[Michelle Weber <umweber@mcs.drexel.edu>]

I have it there in the condition for the while loop.
In the line above it is assigning the value true to the variable exists.


-- 
Michelle Weber
umweber@mcs.drexel.edu


On Mon, 17 Jan 2000, Andrew White wrote:

> You want two "=" signs:
> 
>   exists == true
> 
> -Andrew
> 
> 
> On Mon, 17 Jan 2000, Michelle Weber wrote:
> 
> > Can someone tell me the obvious and what is wrong with this loop in bash:
> > 
> > exists=true
> > 
> > while [ exists==true ];
> > do
> >         echo "Username: "
> >         read username
> >         
> >         if (grep ^$username: /etc/passwd 1>&2 > /dev/null) ; then
> >                 exists=true
> >         else    
> >                 exists=false
> >         fi;     
> > done    
> > 
> > 
> > 
> > No matter what it seems exists=true because the loop never exits.
> > Thanks, 
> > 
> > 
> > 
> 
> 
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