Re: [PLUG] check for existing user

Michelle Weber on 2000年1月16日 10:27:47 -0500 (EST)


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Re: [PLUG] check for existing user


That was my first thought, but then grep returns the lines which that
appears, and what if it is in another field besides the first field? (Like
name or something) - (ok i answered my own question, use a regexp, but im
trying to make this really simple! and I kinda forget how to do regexps
anyway...)
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
On 2000年1月16日, Bill Jonas wrote:
> > What would be the easiest way to check for an existing user with a shell
> > script? So that if it does exist i can do one thing, and if it doesn't i
> > can do another?
> 
> Grep the /etc/passwd file? Does grep give a return value?
> 
> Bill
> 
> --
> "Because they know that all they sold you was a guaranteed POS! Look, if
> you want me to take a dump in a box and mark it 'guaranteed', I will. I got
> spare time."
> -Chris Farley (on Microsoft?), _Tommy Boy_
> 
> 
> 
> 
> 
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