Mohamed Elashri MohamedElashri

Cron Jobs Cheat Sheet

1. Cron Time Format (Crontab Syntax)

Field	Allowed Values	Special Characters	Meaning	Example
`Minute`	0–59	`* , - /`	Minute of the hour	`0` = top of the hour
`Hour`	0–23	`* , - /`	Hour of the day	`5` = 5 AM
`Day`	1–31	`* , - /`	Day of the month	`15` = 15th

ROOT Cheat Sheet

1. Interactive work

Command	Description
`root -h`	show help for root command
`root [-l]`	open ROOT
`root [-l] file.root`	open ROOT and load a file
`.?`	show help in interactive ROOT

INSPIRE HEP-PH Top Papers Analysis

This script fetches and analyzes the top cited High Energy Physics - Phenomenology (HEP-PH) papers from 2024 using the INSPIRE API. It focuses on papers with 10 or fewer authors and generates a detailed table of the most cited papers.

Requirements

Python 3.7+
Required packages:
```
pip install requests pandas tabulate
```

Setup ROOT Environment Script

This script automates the creation of a Conda environment for working with ROOT and Python, including optional configuration for additional packages, Conda channels, and Python versions. It also sets up environment variables for seamless integration with tools like VSCode and Jupyter Notebook.

Features

Automates Environment Creation: Creates a Conda environment with ROOT and Python.
Customizable Options: Allows specifying additional packages, Conda channels, and Python versions.
Jupyter Kernel Integration: Automatically registers the environment as a Jupyter kernel.
Environment Variable Management: Dynamically sets up and cleans up ROOT-specific environment variables.

What is this?

This is a simple Bash script designed to help easily create and manage swap files on a Linux system. It also allows easily configure kernel parameters vm.swappiness and vm.vfs_cache_pressure.

How to Use

OpenSnitch Manager Script

A bash script to manage OpenSnitch installation, uninstallation, and repair on Linux systems. This script provides automated installation of both the OpenSnitch service and UI components, with proper desktop integration and autostart configuration.

Supported Distributions

Debian-based systems (Debian, Ubuntu, Linux Mint, Pop!_OS)
RHEL-based systems (CentOS, Fedora)
Arch Linux

List of Linux commands in tables categorized by tool types. source

File and Directory Operations

Command	Description
`cp`	Copy files to another location
`mv`	Move or rename files or directories
`rm`	Remove files

List of macOS commands in tables categorized by tool types. source

File and Directory Operations

Command	Description
`cp`	Copy files to another location
`mv`	Move or rename files or directories
`rm`	Remove files
`mkdir`	Create new folders

Running a Long-Running Jupyter Notebook Remotely using tmux

Step-by-Step Instructions:

Start tmux Session
- Connect to your remote server via SSH:
```
ssh user@remote-server
```

Start a tmux session to keep your terminal session active even after disconnection:

	#!/bin/bash

	# Define colors for logs
	GREEN='\033[0;32m'
	RED='\033[0;31m'
	NC='\033[0m' # No color

	log_info() { echo -e "${GREEN}[INFO]${NC} $1"; }
	log_error() { echo -e "${RED}[ERROR]${NC} $1"; }