PREIN

/bin/sh

getent group jwhois >/dev/null || groupadd -r jwhois || :

PREUN

/bin/sh

if [ $1 = 0 ]; then
    if [ -f /usr/share/info/jwhois.info ]; then # --excludedocs?
        /sbin/install-info --delete /usr/share/info/jwhois.info /usr/share/info/dir || :
    fi
fi

POSTIN

/bin/sh

if [ -f /usr/share/info/jwhois.info ]; then # --excludedocs?
    /sbin/install-info /usr/share/info/jwhois.info /usr/share/info/dir || :
fi