rkalkani

#!/usr/bin/env bash
set -euo pipefail

SCRIPT_NAME="$(basename "$0")"

usage() {
  cat <<EOF
$SCRIPT_NAME — multi-format compressor (zstd, xz, gzip, lz4, snappy, brotli, zpaq)

Quick guide (which algo to use?):

rkalkani

#!/usr/bin/env bash
# =============================================================================
# check_axios_compromise.sh
# Scans project subdirectories AND global package manager caches/stores for
# compromised axios versions (SNYK-JS-AXIOS-15850650)
#
# Affected versions : axios@1.14.1  |  axios@0.30.4
# Malicious dep     : plain-crypto-js@4.2.1
# Supported PMs     : npm · yarn (v1 classic & v2/v3 Berry) · pnpm · bun
# Node version mgrs : nvm · fnm

rkalkani

#!/bin/bash

# Helper Comments:
# This script helps manage Docker images by cleaning up old and unused images
# while keeping a specified number of recent images per repository.
#
# Usage:
#   ./clean-docker-images.sh [--keep N] [--prune-containers] [--prune-dangling]
#
# Parameters:

rkalkani

Backup your GitLab repos to GitHub

GitLab recently decided to silently delete any repositories that hadn't been accessed in the last year. The announcement didn't go over well and they soon caved to public pressure and decided to instead back up inactive repos to object storage instead of unilaterally deleting them. I'm glad they reconsidered, but the experience left me with a bad taste in my mouth, so I decided to look into (relatively) low

rkalkani

// jQuery import
global.jQuery = require('jquery');
var $ = global.jQuery;
window.$ = $;

// Bootstrap 4 depends on Popper.js
// Popper.js import
//import Popper from 'popper.js';
//window.Popper = Popper;

rkalkani

Get Public IP

DNS

Google

dig o-o.myaddr.l.google.com txt @ns1.google.com +short
# OR
nslookup -type=txt o-o.myaddr.l.google.com ns1.google.com

rkalkani

# Backup mongodb from docker container
docker exec -i ${CONTAINER_NAME} mongodump --uri=${DB_URI} --archive --gzip > $(date +%Y%m%d_%H%M%S)_${DB_NAME}.pgsql.gz

# Restore mongodb from docker container
cat ${FILENAME}.mongodump.gz | docker exec -i ${CONTAINER_NAME} mongorestore --uri=${DB_URI} --nsFrom="${SRC_DB}.*" --nsTo="${DB}.*" --archive --gzip

rkalkani

# Backup postgresql db from postgresql docker container
docker exec -i ${CONTAINER_NAME} pg_dump -U ${USERNAME} -w ${DB_NAME} -O -x | gzip -9 > $(date +%Y%m%d_%H%M%S)_${DB_NAME}.pgsql.gz

# Restore the postgresql db to postgresql docker container
gunzip -c ${FILENAME}.pgsql.gz | sudo docker exec -i ${CONTAINER_NAME} pg_restore -U ${USERNAME} -w -d ${DB_NAME} -C --clean -Fc -O -x

rkalkani

#!/bin/sh

git filter-branch --env-filter '
OLD_EMAIL="wrong.email@example.com"
CORRECT_NAME="Name"
CORRECT_EMAIL="right.email@example.com"
if [ "$GIT_COMMITTER_EMAIL" = "$OLD_EMAIL" ]
then
    export GIT_COMMITTER_NAME="$CORRECT_NAME"
    export GIT_COMMITTER_EMAIL="$CORRECT_EMAIL"

rkalkani

Enable systemd-networkd debugging

mkdir -p /etc/systemd/system/systemd-networkd.service.d/
Create Drop-In /etc/systemd/system/systemd-networkd.service.d/10-debug.conf with following content:

[Service]
Environment=SYSTEMD_LOG_LEVEL=debug
And restart systemd-networkd service:

systemctl daemon-reload