Mahrous Amer mahrous-amer

BSE
Egypt
13:48 (UTC -12:00)
in/mohamed-mahrous-amer
https://stackoverflow.com/users/14127147/mahrous-amer

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mahrous-amer / tcp_server_client.pl

Created July 3, 2025 06:38

Perl script for TCP server and client communication. Supports server and client modes via command-line options. Server echoes client input, supports multiple connections, and includes SO_REUSEADDR. Client reads server responses. Features include configurable host/port, non-blocking I/O, and detailed connection logging. Usage: `--mode=server|clie…

	#!/usr/bin/perl -w
	use strict;
	use Socket;
	use Getopt::Long;
	use IO::Handle;

	# Configuration
	my $default_port = 7890;
	my $default_host = 'localhost';
	my $backlog = 5;

mahrous-amer / GoDockerfile

Created July 3, 2025 06:35

Dynamic Dockerfile for any local Go project

	ARG GO_VERSION=1.20
	ARG BASE_IMAGE=golang:${GO_VERSION}-bullseye
	ARG APP_NAME=app
	ARG APP_PORT=3000

	FROM ${BASE_IMAGE} AS build

	WORKDIR /app

	COPY go.mod go.sum ./

mahrous-amer / alphavantage_daily.sh

Created July 3, 2025 06:20

Bash script to fetch symbol data from Alpha Vantage API, save as JSON, and generate a daily close price graph using gnuplot. Requires curl, jq, gnuplot, and an Alphavantage API key.

	#!/bin/bash

	# Author: Mahrous Amer
	# Date: September 23, 2024

	set -euo pipefail

	# Constants
	BASE_URL='https://www.alphavantage.co'
	CONFIG_FILE='config.conf'

mahrous-amer / git_cheat_sheet.md

Created January 13, 2025 03:59

This cheat sheet serves as a quick reference guide for developers of all levels. It covers essential commands for version control, including file comparison (diff and patch), repository management, committing, branching, remote operations, and security features like GPG signing. It also includes tips for viewing logs, handling file changes acros…

Git and GitHub

Diff and Patch

`diff`

diff is used to find differences between two files. For easier usage, combine it with -u:

diff -u file1 file2

mahrous-amer / aws_ebs_comliance.sh

Created January 7, 2025 04:31

This script calculates total IOPS for the volumes, compares it with the instance's maximum allowed IOPS, and provides a compliance status based on EBS optimization support.

	#!/bin/bash

	PROFILE=""
	INSTANCE_ID=""
	echo "Instance ID: $INSTANCE_ID"

	echo "Fetching instance details..."
	instance_details=$(aws --profile $PROFILE ec2 describe-instances --instance-ids "$INSTANCE_ID" --query 'Reservations[0].Instances[0]' --output json)
	echo "Instance details fetched successfully."

mahrous-amer / aws_scrape.sh

Created January 7, 2025 04:29

Gather detailed information about various AWS resources in a specific region, using a specified AWS CLI profile.

	#!/bin/bash

	# Define variables
	REGION="eu-west-1"
	PROFILE="default"
	OUTPUT_FORMAT="json"

	# Helper function to fetch and print results
	function fetch_and_print {
	local description=$1

mahrous-amer / aws_optimizer.sh

Last active January 7, 2025 06:22

	#!/bin/bash

	# Define variables
	REGION="eu-west-1"
	PROFILE="default"
	OUTPUT_FORMAT="json"
	PERIOD_IN_SECONDS=3600
	STATISTIC="Maximum"
	END_TIME=$(date -u "+%Y-%m-%dT%H:%M:%SZ")
	START_TIME=$(date -u -v-7d "+%Y-%m-%dT%H:%M:%SZ")

mahrous-amer / postgres-dev.sh

Created October 29, 2024 06:29

A Bash utility script for managing a local PostgreSQL Docker container with ease.

	#!/bin/bash

	# Environment Variables
	CONTAINER_NAME="dev-postgres"
	POSTGRES_IMAGE="postgres"
	POSTGRES_PASSWORD="dev_password"
	DATA_DIR="${HOME}/dev_postgres/"

	# Display Help
	Help()

mahrous-amer / DockerDefaultAddressPooling.md

Created March 22, 2024 06:32

Docker default address pooling

Default settings

{
 "default-address-pools" : [
 {
 "base" : "172.17.0.0/12",
 "size" : 16