PREUN

/bin/sh

[ $1 = 0 ] && update-alternatives --remove smbclient /usr/bin/smbclient3 ||:

POSTIN

/bin/sh

update-alternatives --install /usr/bin/smbclient smbclient \
/usr/bin/smbclient3 10 \
$(for i in {/bin/mount.cifs,/sbin/{mount.smb,mount.smbfs},/usr/bin/{findsmb,nmblookup,smbclient,smbmnt,smbmount,smbprint,smbspool,smbtar,smbumount,smbget}};do
j=`basename $i`
[ "$j" = "smbclient" ] || \
echo -n " --slave ${i} ${j} ${i}3";done) \
--slave /usr/lib/cups/backend/smb cups_smb /usr/lib/cups/backend/smb3 || \
update-alternatives --auto smbclient

Triggers

samba-client

/bin/sh

[ ! -e /usr/bin/smbclient ] && update-alternatives --auto smbclient || :

samba2-client

/bin/sh

[ ! -e /usr/bin/smbclient ] && update-alternatives --auto smbclient || :