Saqib Azim saqib1707

Command Line Crash Course

Cheatsheets

Github Page Setup Guide Locally

Install Ruby (Recommended)

MacOS comes with Ruby installed, but it's usually a good idea to install a newer version and manage it through a version manager like rbenv or RVM. This avoids permission issues and makes it easier to manage different Ruby environments. If you encounter any permission issues during the installation (which can happen with the default Ruby installation on macOS), using a Ruby version manager like rbenv helps resolve these issues. It allows you to install gems without needing superuser privileges and makes managing Ruby environments easier.

Using rbenv (recommended for simplicity):

brew install rbenv

Tips & Tricks for Unix Systems

iTerm2

Split terminal into two vertical panes: Cmd + D
Split terminal into two horizontal panes: Cmd + Shift + D

Macbook On-board Keyboard (proceed with caution using sudo)

Tested on Macbook Air 2017
To disable keyboard (in case on-board keyboard not functioning correctly):

Python Virtual Environments

A python virtual environment is a lighweight tool used to create an isolated Python environment with its own -

Package directories that doesn't share libraries with other virtual environments
Python binary (either copied or linked from the python environment used to create the virtual env)
optionally doesn't access the globally installed libraries either

Note: venv is a package that comes only with Python3.x and not with Python2.x.

To create a python virtual environment:

Machine Learning / Deep Learning Resources

Understanding LSTM
Guide to LSTMs and GRUs
CS231n Stanford Lecture Slides
KL Divergence Demystified
GPUs in Deep Learning - by Tim Dettmers
Paper: Attention is All You Need - Introduces attention and transformer
Blog: Explaining Transformer (Very Good)
Blog: Transformer
Blog: KL-Divergence

Sed Cheat Sheet

Sed command line options

sed [options] sed-command [input-file]

Option	Description	Example

	Collecting wrf-python==1.3.1 (from -r requirements.txt (line 21))
	Downloading wrf-python-1.3.1.tar.gz (1.1 MB)
	━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 1.1/1.1 MB 38.8 MB/s eta 0:00:00
	Preparing metadata (setup.py) ... error
	error: subprocess-exited-with-error

	× python setup.py egg_info did not run successfully.
	│ exit code: 1
	╰─> [6 lines of output]
	Traceback (most recent call last):

	#!/bin/bash
	# find_and_replace.sh

	echo "Find and replace in current directory!"
	echo "File pattern to look for? (eg '*.txt')"
	read filepattern
	echo "Existing string?"
	read existing
	echo "Replacement string?"
	read replacement

	# List of cheatsheet for linux find.
	# Taken from here http://alvinalexander.com/unix/edu/examples/find.shtml

	# basic 'find file' commands
	# --------------------------
	find / -name foo.txt -type f -print # full command
	find / -name foo.txt -type f # -print isn't necessary
	find / -name foo.txt # don't have to specify "type==file"
	find . -name foo.txt # search under the current dir
	find . -name "foo.*" # wildcard

	echo "Downloading gcc source files..."
	curl https://ftp.gnu.org/gnu/gcc/gcc-5.4.0/gcc-5.4.0.tar.bz2 -O

	echo "extracting files..."
	tar xvfj gcc-5.4.0.tar.bz2

	echo "Installing dependencies..."
	yum -y install gmp-devel mpfr-devel libmpc-devel

	echo "Configure and install..."