# Three ways of checking if a file exists in a shell script

FILE=/etc/resolv.conf

if test -f "$FILE"; then
    echo "$FILE exists."
fi

if [ -f "$FILE" ]; then
    echo "$FILE exists."
fi

if [[ -f "$FILE" ]]; then
    echo "$FILE exists."
fi

#!/bin/bash

#Changes the remote url from https to ssh.

#Only works for github, because I'd have to store a dictionary of every https to ssh url otherwise.

#Made using Bing Chat


# Get the remote URL from the console
REPO_URL=$(git config --get remote.origin.url)


# Check that REPO_URL contains https://github.com
if [[ $REPO_URL == *"https://github.com"* ]]; then

    # Replace https with ssh in the URL  
    REPO_URL=${REPO_URL/https:\/\/github.com\//[email protected]:}

    # Change the remote URL to the SSH version
    git remote set-url origin "$REPO_URL"

else
    echo "Error: REPO_URL does not contain https://github.com" >&2
    exit 1
fi

awk '\
{ for (i=1; i<=NF; i++) { ++D[$i]; } }\
END { for (i in D) { print i, D[i] } }\
' words.txt | sort -nr -k 2

#!/bin/bash

#Installs the Vulkan library and other goodies. Works on Arch and Arch based distros. Needs pacman and makepkg
installVulkan(){

	#Tries installing every linux package in existence
	packages=( vulkan-tools libvulkan-dev vulkan-loader-devel vulkan-validation-layers spirv-tools mesa-vulkan-devel vulkan-validation-layers-devel )
	for package in ${packages[*]}; do
	sudo pacman --noconfirm -S $package
	done
}
installLibraries(){

	#All of these packages don't exist, so we have to download and install the AUR packages

	#packages=( libglfw3-dev glfw-devel libglm glm-devel )

	#for package in ${packages[*]}; do

	# sudo pacman --noconfirm -S $package

	#done
	sudo git clone https://aur.archlinux.org/glfw-git.git /tmp/glfw-git
	sudo chmod 777 /tmp/glfw-git
	cd /tmp/glfw-git
	makepkg -si

	sudo git clone https://aur.archlinux.org/glm-git.git /tmp/glm-git
	sudo chmod 777 /tmp/glm-git
	cd /tmp/glm-git
	makepkg -si
}
installShaderCompiler(){

	#Basically installs glslc
	sudo pacman -S shaderc
}
while true; do
	select bruh in installVulkan installLibraries installShaderCompiler "exit"; do

	$bruh
	done
done

for region in `aws ec2 describe-regions --output text | cut -f4`
do
     echo -e "\nListing Instances in region:'$region'..."
     aws ec2 describe-instances --query 'Reservations[*].Instances[*].{Instance:InstanceId,Subnet:SubnetId}' --region $region
done
#This script is to be used with any AWS CLI configured environment, it will list any EC2 instances and their associated subnet network ID's in JSON format

// check version
node -v || node --version

// list installed versions of node (via nvm)
nvm ls

// install specific version of node
nvm install 6.9.2

// set default version of node
nvm alias default 6.9.2

// switch version of node
nvm use 6.9.1