Re: [PLUG] check for existing user

[Tim Peeler <kpeeler@erols.com>]

On Sun, 16 Jan 2000, you wrote:

> I was thinking of just using the command id, but for either grep or id,
> how do I make a variable equal to true or false depending on what grep or
> another command returns? (in bash)
> 
> -- 
> Michelle Weber
> umweber@mcs.drexel.edu

Just use an if statement.

if (grep regexp foo 1>&2 > /dev/null) ; then
   var=true;
else
   var=false;
fi

Don't know if bash has something like c's conditional statements:

(grep regexp foo 1>&2>/dev/null) ? var=true : var=false;

But you could check.

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