On Thu, 2005-03-31 at 22:18 +0200, Shachar Shemesh wrote: > Hi all, > > This question is about a package that will likely not make it into > Debian (too specific). I even suspect this has some relevance. > > I would like to install a package that creates it's own special user and > group during installation. I have utterly and totally failed to find a > ready made package that does that, with the sole exception of qmail-src > (from non-free) that creates them in the 655xx area. Not exactly what I > would like to do. > > How do I create said user and group? How do I tell between useradd or > adduser failing due to user already existing, and other unrelated > reasons? Do I at all need to care about that? Hi, grep for 'adduser' in /var/lib/dpkg/info/*postinst to see some examples. You can use getent(1) to check for the existence of a user. Here is what I do (package gpsd): postinst: | # create user gpsd | getent passwd gpsd > /dev/null || \ | adduser --system \ | --home "/nonexistent" --no-create-home \ | --disabled-password --ingroup dialout \ | --gecos "GPS daemon user" gpsd postrm: | if [ "x$1" = "xpurge" ] ; then | getent passwd gpsd > /dev/null && deluser gpsd | fi Cheers, Til
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