Category: shell

FOSS, linux, rust, shell

Analize disk usage with dutree

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 …

btrfs, linux, shell

Easy sync BTRFS snapshots with btrfs-sync

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 …

ARM, linux, shell

Safely flash SD card images with ddsd

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

We …

btrfs, linux, shell

Schedule BTRFS snapshots with btrfs-snp

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 …

btrfs, linux, shell

Check disk space of your BTRFS snapshots with btrfs-du

Today I want to share a simple way to check the state of our BTRFS snapshots. Usage

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 we holding. …

debian, linux, raspberrypi, shell

Customize your MOTD login message in Debian and Ubuntu

This is a little guide to display dynamic login messages on a Debian system. This is one of those things where the internet has plenty of resources, but they are mostly outdated and contradictory. Even typing man motd in Debian is a sad experience. It is not a difficult thing to do but it can be …

linux, networking, shell

Easy passwordless SSH with sshh

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 …

shell

List files without stopping to type in zsh

This zsh widget allows you to list files in the current directory without interrupting the command you are typing. Usage Hit <tab>  in the middle of any command. It will list all files below the command line. Hit  <space><tab>  on an empty command line. It will list directories. Hit  <space><space><tab>  on an empty command line. It will …