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Table of Contents

• set -e, -u, -x, -o pipefail
• set -e
• set -x
• set -u
• set -o pipefail
• Setting IFS
• Original Reference

set -e, -u, -x, -o pipefail

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set -e, -u, -o, -x pipefail

The set lines

• These lines deliberately cause your script to fail. Wait, what? Believe me, this is a good thing.
• With these settings, certain common errors will cause the script to immediately fail, explicitly and loudly. Otherwise, you can get hidden bugs that are discovered only when they blow up in production.

• set -euxo pipefail is short for:

set -e
set -u

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Transmission Blocklist

The Transmission torrent client has an option to set a Blocklist, which helps protect you from getting caught and having the DMCA send a letter/email.

It's as simple as downloading and installing the latest client:

• https://transmissionbt.com/download/

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#!/bin/bash

dbus-monitor --system "type='signal',path='/org/freedesktop/UPower/devices/battery_BAT0',member='PropertiesChanged'" | while read LINE; do
    echo ${LINE} | grep battery_BAT0 | grep -q PropertiesChanged
    if [ $? -eq 0 ]; then
        BATT_STAT=$(dbus-send --print-reply=literal --system --dest=org.freedesktop.UPower /org/freedesktop/UPower/devices/battery_BAT0 org.freedesktop.DBus.Properties.Get  string:org.freedesktop.UPower.Device string:State | awk '{ print $3; }')
        if [ $BATT_STAT -eq 1 ] || [ $BATT_STAT -eq 4 ]; then
            LEVEL=$(powerprofilesctl list | grep -q performance && echo "performance" || echo "balanced")
        elif [ $BATT_STAT -eq 5 ]; then
            LEVEL="balanced"

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Jellyfin API Authorization

To start using the Jellyfin API, authorization is probably the first thing you'll need to do. Jellyfin's authorization options can be a bit confusing because there are a lot of deprecated options.

Generally there are three ways to authenticate: no authorization, user authorization with an access token or authorization with an API key. The first way is easy, just do nothing. But most often you'll need to use either the access token or API key.

Sending authorization values

There are multiple methods for transmitting authorization values, however, some are outdated and scheduled to be removed. It's recommend to use the Authorization header. If header auth isn't an option, the token may be sent through the ApiKey query parameter. Sending secure data in a query parameter is unsafe as the changes of it leaking (via logs, copy-paste actions or by other means) are high. Only use this method as a last resort.

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Backup android app, data included, no root needed, with adb

adb is the Android CLI tool with which you can interact with your android device, from your PC

You must enable developer mode (tap 7 times on the build version in parameters) and install adb on your PC.

Don't hesitate to read comments, there is useful tips, thanks guys for this !

Fetch application APK

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###########################
# Phone apps and services #
###########################
adb shell "cmd package install-existing com.android.stk" # SIM toolkit
adb shell "cmd package install-existing com.android.stk2" # SIM toolkit (maybe for dual-sim devices)
adb shell "cmd package install-existing com.sec.android.app.simsettingmgr" # SIM card manager, maybe required, contains configuration and settings for handling dual SIM (give a SIM an icon, a name, and so on)
adb shell "pm uninstall -k --user 0 com.samsung.android.smartcallprovider" # The 4th tab in the Phone app for 'local places'
adb shell "pm uninstall -k --user 0 com.sec.vsim.ericssonnsds.webapp" # NSDSWebApp. The Non Sim Device Solution (NSDS) is linked to VoLTE and VoWifi (Wifi Calling). NSDS allows connecting non sim devices to IMS core: https://uk.linkedin.com/in/hemant-kumar-dewnarain-2b779679
adb shell "pm uninstall -k --user 0 com.android.cts.ctsshim" # Part of the Android Compatibility Test Suite: https://source.android.com/compatibility/cts/setu

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- This page is a collection of some of the Advanced queries from the [[Datalog]] channel on the [[Logseq/Discord]] server. #datalog
  id:: 61db13f4-75e8-4f87-ad60-3ac3479c5fc8
- ### Resources
	- [link: The first message on the datalog channel](https://discord.com/channels/725182569297215569/743139225746145311/743139795865174119)
	- [link: Logseq docs - Advanced queries](https://docs.logseq.com/#/page/advanced%20queries)
	- [link: Logseq datascript schema](https://gist.github.com/tiensonqin/9a40575827f8f63eec54432443ecb929)
	- [link: Logseq frontend db model](https://github.com/logseq/logseq/blob/master/src/main/frontend/db/model.cljs)
	- [link: How to Graph Your Data - talk by Paula Gearon](https://youtu.be/tbVwmFBnfo4)
	- [link: Domain modelling with datalog - talk by Norbert Wojtowicz](https://youtu.be/oo-7mN9WXTw)
	- [link: Athens Research ClojureFam](https://github.com/athensresearch/ClojureFam)

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{
  config,
  pkgs,
  options,
  ...
}: let
  hostname = "oatman-pc"; # to alllow per-machine config
in {
  networking.hostName = hostname;

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Notes on my Arch Linux installation

• Notes on my Arch Linux installation
  • Hardware
    • Known Issues
  • Preparation
  • Pre-installation
    • Select the drive
    • Zap the disk
• Create the partitions