Re: Way to check installed daemon

[Andrew Stribblehill <a.d.stribblehill@durham.ac.uk>]

Quoting John H. Robinson, IV <jhriv@ucsd.edu>:
> 
> how about replacing dpkg -s lprng with
> grep -A1 '^Package: lpr$' /var/lib/dpkg/status
> 
> and grep -e "^Status: install ok installed" with
> grep -q -e "^Status: install ok installed"
> (helps in suppressing unnecessary output)
> 
> comparison times:
> dpkg -s lpr  5.71s user 0.37s system 35% cpu 17.182 total
> grep -A1 '^Package: lpr$' /var/lib/dpkg/status  0.00s user 0.04s system 155% cpu 0.026 total

That depends on an implementation detail in dpkg -- surely that's not
a good idea.

-- 
Andrew Stribblehill <ads@debian.org>
Systems programmer, IT Service, University of Durham, England