Technology with a focus on Open Source
dutree is a command line tool to analyze disk usage. Features coloured output, according to the LS_COLORS environment variable. display the file system tree ability to aggregate small files ability to exclude files or directories ability to compare different directories fast, written in Rust This tool is a mix between tree and durep, which we already …
To complement the last BTRFS tool btrfs-snp (which allows us to schedule snapshots), I would like to share a new tool to synchronize them locally or remotely to achieve efficient data redundancy. With btrfs-snp we can replicate our BTRFS snapshots in a different BTRFS system, and have a second copy of our versioned subvolume in …
I would like to share another wrapper based on the pv command ( because we love progress bars!! ). As part of my work in NextCloudPi, I am constantly copying images to an SD card to test the latest build. The classic Linux way of doing this is by using the dd command # dd …
To complement the last BTRFS tool btrfs-du, I would like to share a simple script for creating BTRFS snapshots that plays well with cron and systemd timers. This allows us to easily automate snapshot creation. I was inspired by btrfs-snap by Birger Monsen. Usage btrfs-snp can be run manually, or summoned from cron. Invoke without …
Today I want to share a simple way to check the state of our BTRFS snapshots. Usage # btrfs-du /path/ If path is omitted, it will default to / . We can list easily our snapshots, plus have a clear view of how much data they have in common and how much total overhead are …
It won’t come as a surprise by now that we love shell progress bars. When we are copying big files it would be nice to have an ETA, progress bar and some feedback, but the cp command doesn’t provide us with this. Of course, we can use rsync to get some feedback of the process, …
Rewriting commits, squashing them, eliminating them, forgeting blobs or just rebasing from master to make future merges less painful. Git comes equiped with all we need to rewrite history. But! doing so will have the nasty side effect of changing our commit hashes, and our tags will be now referencing commits that are out of …
I would like to share this little shell function that I wrote to spice up my shell scripts. It is a simple progress bar that you can launch for a number of seconds, to get an idea of how long there is still to wait. It uses partial Unicode blocks to achieve subcharacter precision. Usage …
This little wrapper for SSH and SCP allows for comfortable management and scripting. It is specifically recommended for developing and testing embedded systems and virtual machines before production, where strong security is not required. Usage Use sshh and scpp exactly as you would use ssh and scp. Instalation Easy install! Paste on your zsh terminal …
IMPORTANT: The contents of this blog post are a detailed explanation of NextCloudPi. However, the main landing page of the project is now nextcloudpi.com and that is the place where information will be kept up to date. I would like to introduce NextCloudPi, ready to use Raspbian 9 image with the latest Nextcloud 13. NextCloudPi …