ErykDarnowski

Copy multiple lines of text in front of other multiple lines of text in Vim

1. Prep the initial multiline by for instance adding padding (e.g. on the right side of numbers)
2. Select the multiline text you would like to copy
   1. Go to the first line
   2. Enter visual block mode (Ctrl + v or q)
   3. Move to the last line
   4. Go to the end of the line (Shift + 4)
3. Cut it (d)
4. Paste the initial multiline text to target multiline text

ErykDarnowski

Find non-empty folders containing Games in their name, print their amount of children and sort the output by number

find -type d -name "*Games*" -not -empty

This part of the command uses the find command to search for directories (-type d) that have "Games" in their name (-name "Games") and are not empty (-not -empty). The find command prints the path of each matching directory to the standard output.

-exec sh -c 'echo "{}: $(expr $(ls -l "{}" | wc -l) - 1)"' \;

This part of the command uses the -exec option of the find command to execute another command on each matching directory. The command to execute is enclosed in single quotes and has a placeholder {} for the directory name. The command ends with a semicolon, which is escaped with a backslash to prevent the shell from interpreting it.

ErykDarnowski

How to fix ERROR: unable to select packages error on Alpine Linux

1. Make sure the pkg/s you're trying to install are actually available
2. Run: tail -f /etc/apk/repositories to check which repositories you're using
3. Uncomment the community repository

ErykDarnowski

Quickly and easily startup a VirtualBox / VMware VM without having to download and install it manually from an ISO file.

OSBoxes

If you don’t want to install secondary OS alongside with your main OS but still want to use/try it, then you can use VirtualBox or VMware on your host operating system to run virtual machine.

VirtualBox tutorial

1. Download an image you're interested in
2. Unzip it

ErykDarnowski

import time
import webbrowser


delay = 0.2
incognito_mode = True
input_filename = 'input.txt' # <- any URLs separated by `\n`
browser_path = 'C:/Program Files/BraveSoftware/Brave-Browser/Application/brave.exe %s' + (' --incognito' if incognito_mode else '')

ErykDarnowski

Find all Dockerfile.node files and do diff / wdiff between each file and 0http/.Dockerfile.node file

#!/bin/bash

# clordiff
find ../ -name "*Dockerfile.node*" -exec colordiff ../0http/.Dockerfile.node {} \;

# wdiff
find ../ -name "*Dockerfile.node*" -exec sh -c 'wdiff ../0http/.Dockerfile.node "{}" | colordiff' \;

ErykDarnowski

Find pattern in config.yaml files (recursively) and check when they were last changed according to system / to git

# git
grep -rl --include="config.yaml" "website:" | xargs -n1 git log -1 --pretty="format:%ci"

# system
grep -rl --include="config.yaml" "website:" | xargs stat -c "%y" {}

ErykDarnowski

Find files (excluding *.git* folders) and only write their paths if they're binary files

find . -type 'f' -not -path '*.git*' -exec file --mime {} \; | grep binary | cut -d: -f1

ErykDarnowski

Find files (excluding *.git* folders) and only write their unique extensions in to out.txt

find . -type 'f' -not -path '*.git*' | grep -oP "[^.]*$" | sort -u >> out.txt

ErykDarnowski

Fix PGP singature errors on Arch Linux.

# Refresh the keys:
sudo pacman-key --refresh-keys

# Update the system:
sudo pacman -Syyu