arbal

/**
 * compile using this:
 *  gcc -framework Carbon -framework Foundation ./hung.m -o hung
 *
 * Referenced from https://apple.stackexchange.com/a/424763/260619
 * Original source code https://github.com/jksoegaard/NonResponding
 * Original Author: jksoegaard
 **/

#import <Foundation/Foundation.h>

arbal

Usage

• Export your data from Prometheus: https://github.com/VictoriaMetrics/VictoriaMetrics/blob/master/README.md#how-to-export-time-series
• Run this script on the new data python3 delete_timeseries.py -i imported_file.json -o output_file.json --from [unix timestamp] --to [unix timestamp]
• Delete original data from Prometheus: https://docs.victoriametrics.com/#how-to-delete-time-series
• Import the converted data: https://github.com/VictoriaMetrics/VictoriaMetrics/blob/master/README.md#how-to-import-time-series-data

Note that the response cache must be deleted after these steps in order to remove previously cached results - see more details here.

arbal

Option 1 - Use This Bitcoin Fast Sync Command

There is no torrent which would be faster than just using the Bitcoin network "hive" - which is huge. There may be a way to sync using local or low-latency nodes nearby, but any time you specify which nodes you sync from - it introduces risk.

Very good to have a fast CPU and lots of RAM, SSD is not as important as RAM.

With this command I was able to download the entire blockchain and create all indices in almost exactly 24 hours:

bitcoind --datadir=<path-to-external-ssd> -blockfilterindex=1 -txindex=1 -coinstatsindex=1 -dbcache=16384 -daemon If you have 32GB of RAM, you can use 32768 for dbcache

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Unbound Cheat Sheet

Installation

$ yum install -y unbound

Setup SSL keys for unbound-control

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#import <Foundation/Foundation.h>
#import <Cocoa/Cocoa.h>
#import <unistd.h>
BOOL copy_to_clipboard(NSString *path)
{
  // http://stackoverflow.com/questions/2681630/how-to-read-png-image-to-nsimage
  NSImage * image;
  if([path isEqualToString:@"-"])
  {
    // http://caiustheory.com/read-standard-input-using-objective-c 

arbal

#!/bin/zsh
#Credit: Original idea and script disable.sh by pwnsdx https://gist.github.com/pwnsdx/d87b034c4c0210b988040ad2f85a68d3

#Disabling unwanted services on macOS Big Sur (11), macOS Monterey (12) and macOS Ventura (13)
#Disabling SIP is required  ("csrutil disable" from Terminal in Recovery)
#Modifications are written in /private/var/db/com.apple.xpc.launchd/ disabled.plist, disabled.501.plist
# To revert, delete /private/var/db/com.apple.xpc.launchd/ disabled.plist and disabled.501.plist and reboot


# user

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Grab the current or most recent console user in macOS

Should work on Linux as well.

id -un

stat returns last user logged in most recently.

stat -f %Su /dev/console

Can cause some false positives depending on environment.

ls /dev/console | awk '{ print $3 }'

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#!/bin/bash
# 
# ffmpeg-progress-dialog.sh
# by Timm Thaler
#
# based on the ffmpeg-progress.sh from https://gist.github.com/pruperting/397509
# licensed under the GNU GENERAL PUBLIC LICENSE Version 3
#
# Dependencies / needed software
# ffmpeg (of course)

arbal

Grub Init Tune - Mario Bros. Mushroom Powerup

This Grub Init Tune will make your computer sound like a Super Mushroom every time you turn it on! This only works for the Grub bootloader - this generally means you need to have Linux (or other Grub-based OS) installed.

Here's the code, which goes in your /etc/default/grub file:

GRUB_INIT_TUNE="1750 523 1 392 1 523 1 659 1 784 1 1047 1 784 1 415 1 523 1 622 1 831 1 622 1 831 1 1046 1 1244 1 1661 1 1244 1 466 1 587 1 698 1 932 1 1195 1 1397 1 1865 1 1397 1"

Installation Instructions

arbal

Taking two video clips, placing them side by side, combining 4 channels of audio into 2, and output.

ffmpeg -i video1.MP4 -i video2.mp4 -filter_complex "[0:v][1:v]hstack=inputs=2[v]; [0:a][1:a]amerge[a]" -map "[v]" -map "[a]" -ac 2 output.mp4

This was done with two filters and the audio from both inputs.

• hstack places each video side-by-side.
• amerge combines the audio from both inputs into a single, multi-channel audio stream, and -ac 2 will make it stereo (without this option the audio stream may end up as 4 channels if both inputs are stereo.)