This is how a number of PDF files can be concatenated, which is also known as merge, join or combine PDF files, with pdftk on the command line.
Continue reading “How to manipulate PDF files on the command line with pdftk.”Category: System Administration
These are my notes, tips and howtos about system administration of information technology. If you have any feedback, feel free to contact me.
This is the procedure for restoring (undeleting) accidentally deleted or modified files from a snapshot of a file system on ZFS.
Continue reading “How to restore (undelete) accidentally deleted files from ZFS snapshot.”Examples of how to add text before file names, add text after file names, rename part of file names and rename to incrementing numbers by batch processing on the command line in bash shell.
Continue reading “How to rename batch of images or files in sh or bash shell.”This is the procedure for updating (patching) the FreeBSD system by downloading (fetching) and installing the binary patches from a FreeBSD mirror.
Continue reading “How to update (patch) the FreeBSD system.”This page describes the roles, fundamental principles and daily tasks of a system administrator. What good practice of system and network administration means.
Continue reading “What is a system administrator?”This is the procedure for setting up ImageMagick to take screenshots in GNOME on FreeBSD. The filename will be named in the ISO 8601 format.
Continue reading “How to take screenshots with ImageMagick in GNOME on FreeBSD.”This is guide for setting up headset and audio for a Jitsi Meet video meeting in FreeBSD and GNOME. This guide also answers, why Jitsi Meet is better than Zoom and Teams.
Continue reading “How to participate in a Jitsi Meet video meeting with FreeBSD and GNOME.”This is the procedure for applying a great-looking, readable and legally correct copyright notice on a batch of pictures with ImageMagick and its composite operator of convert.
Continue reading “How to add a transparent copyright notice to a batch of pictures with ImageMagick.”This is the procedure for creating a simple mail list on FreeBSD with Sendmail, that is installed by default. The purpose of a mail list is to create an email address or mail list alias, that distributes the message to each member of a list.
Continue reading “How to create a simple mail list on FreeBSD.”This is the procedure for installing and running the Spotify desktop client in GNOME on the FreeBSD operating system by using FreeBSD’s built-in Linux Binary Compatibility. This procedure has been tested on Spotify (2021) through 1:1.1.84 (2022) on FreeBSD 13.0.
Continue reading “How to install Spotify on FreeBSD.”