Template:UpdatePackage
From Open-Xchange
Installing Updates
Debian
$ apt-get update
$ apt-get upgrade
If you want to see, what apt-get is going to do without actually doing it, you can run:
$ apt-get upgrade -s
RPM based distributions
RHEL
$ yum update
SLES10
$ zypper up -y -t package
SLES11
$ zypper up
You might need to run
$ zypper ref
to update the repository metadata before running zypper up.