- https://www.suse.com/documentation/sles11/book_sle_admin/data/sec_netz_xntp_yast.html
- https://forums.opensuse.org/showthread.php/487122-Use-zypper-as-sudoer-configuration
- https://github.com/alfem/softwarechannels/blob/master/softwarechannels.conf
- https://www.novell.com/documentation/opensuse110/opensuse110_reference/data/sec_zypper.html
- zypper cheatsheet: https://en.opensuse.org/images/1/17/Zypper-cheat-sheet-1.pdf
- http://www.thegeekstuff.com/category/bash-2/
- http://www.thegeekstuff.com/2015/04/zypper-examples/
- https://en.opensuse.org/Portal:Zypper
- https://forums.opensuse.org/showthread.php/386566-Learn-how-to-use-your-zypper
- https://en.opensuse.org/images/1/17/Zypper-cheat-sheet-1.pdf
- https://forums.opensuse.org/showthread.php/407910-quot-zypper-update-quot-vs-quot-zypper-dup-quot
- http://opensuse-guide.org/codecs.php
- http://unix.stackexchange.com/questions/82016/how-to-use-zypper-in-bash-scripts-for-someone-coming-from-apt-get
- http://unix.stackexchange.com/questions/101534/using-zypper-how-can-i-remove-all-packages-installed-from-a-specific-repository?rq=1
- Unable to create io-slave: klauncher said: Error loading 'kio_file'.
- https://forums.opensuse.org/showthread.php/509200-Can-t-select-files-in-KF5