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

#!/bin/bash
#Originally made by Isaac Cook https://gist.github.com/icook/5400173
#Modified by Leif Messinger
#upload_key.sh [server_ip [server2_ip [...]]]
#To be run locally on a linux computer

if [ -e ~/.ssh/id_rsa.pub ];
then
    echo "SSH Key already exists on local machine"
else
    echo "Generating SSH key on local machine"
    ssh-keygen -t rsa   #generates id_rsa and id_rsa.pub
    chmod -R 700 ~/.ssh #Sets permissions of ssh folder
    ssh-add     #Adds keys (and passwords?) to ssh_agent. (hopefully doesn't require password)
fi

echo "Loading client public key into memory"
pubKey=$(<~/.ssh/id_rsa.pub)

for server
do
    echo "Adding client public key to $server remote server authorized keys"
    #Idiot Isaac Cook didn't know about ssh-copy-id
    #ssh-copy-id even checks if your key already exists
    #In fairness, I didn't either until researching ssh-add
    ssh-copy-id -i ~/.ssh/id_rsa.pub $server        #In theory, this should prompt for a username

    #ssh $server "mkdir -p ~/.ssh;  #Make the folder if not already made
    #       echo \"$pubKey\" >> ~/.ssh/authorized_keys;     #Append your public key to the server's authorized_keys
    #       chmod 700 ~/.ssh && chmod 600 ~/.ssh/authorized_keys"   #Set the correct permissions of those files

    #echo "Adding server public key to local authorized keys"
    #ssh $server "ssh-copy-id -i ~/.ssh/id_rsa.pub \$SSH_CLIENT" #this might need some awk, as $SSH_CLIENT spits out clientip portnumber

    echo "Displaying server public key"
    ssh $server "cat ~/.ssh/id_rsa.pub"

    #Though, he did give me a good idea
    echo "Displaying keys authorized on $server (you can paste them in your authorized_keys file)"
    ssh $server "cat ~/.ssh/authorized_keys"

    #echo "Appending keys authorized on $server to your local authorized_keys"
    #ssh $server "cat ~/.ssh/authorized_keys" >> ~/.ssh/authorized_keys
done
echo "SSH keys schronized successfully!"

touch /tmp/login1.txt /tmp/login2.txt
while [ true ]
do
	who | gawk '{ print $1 }' > /tmp/login2.txt
	comm -13 /tmp/login1.txt /tmp/login2.txt
	#Just a bit easier to read
	#diff /tmp/login1.txt /tmp/login2.txt
	cat /tmp/login2.txt > /tmp/login1.txt
	sleep 1
done

#!/bin/bash
# Turns 4 spaces into tabs.
# Mostly stolen from AI
# Define the directory to process
DIRECTORY=$1
TabCount=${2:-'4'}    #Defaults to 4

# Check if directory is specified
if [ -z "$DIRECTORY" ]; then
    echo "Error: Directory not specified."
    exit 1
fi

# Check if directory exists
if [ ! -d "$DIRECTORY" ]; then
    echo "Error: Directory does not exist."
    exit 1
fi

# Find all files in directory and subdirectories
FILES=$(find "$DIRECTORY" -type f)

# Loop through each file and unexpand it
for FILE in $FILES; do
	unexpand -t "$TabCount" "$FILE" > "$FILE.tmp"
	mv "$FILE.tmp" "$FILE"
done

echo "Done!"

#!/bin/bash
#Takes all the c and h files in the current directory and prints them
#Yup, it's that easy
for file in *.h *.hpp *.c *.cpp; do
	#If it exists
	if [ -f "$file" ]; then
	echo "//===============$file==============="
	cat $file
	fi
done

#!/bin/bash
#makefileMaker.sh by Leif Messinger
#Needs getDependencies.sh

CC="gcc"
#I have no idea why it's called CXX when it's a c++ compiler
#I know that cpp is c pre processor, but still, why X?
CXX="g++"

CXXFLAGS="-std=c++17 -O2"
#CFLAGS="-std=c17"
LIBRARIES="$@"
#Vulkan Flags for me
#LIBRARIES="-lglfw -lvulkan -ldl -lpthread -lX11 -lXxf86vm -lXrandr -lXi"

function compileAllFiles(){
	#output: bruh.o yeet.o
	#	CXX $CXXFLAGS bruh.o yeet.o -o output $LIBRARIES
	echo -n "output:"
	if compgen -G "*.cpp" &> /dev/null; then
		for f in *.cpp; do
			echo -n " ${f%.cpp}.o"
		done
	fi
	if compgen -G "*.c" &> /dev/null; then
		for f in *.c; do
			echo -n " ${f%.c}.o"
		done
	fi
	echo ""

	if compgen -G "*.cpp" &> /dev/null; then
		echo -e -n "\t$CXX $CXXFLAGS "
	else
		echo -e -n "\t$CC $CFLAGS "
	fi
	if compgen -G "*.cpp" &> /dev/null; then
		for f in *.cpp; do
			echo -n " ${f%.cpp}.o"
		done
	fi
	if compgen -G "*.c" &> /dev/null; then
		for f in *.c; do
			echo -n " ${f%.c}.o"
		done
	fi
	echo " -o output $LIBRARIES"
	echo ""
}

function compileAllObjectFiles(){
	#bruh.o: bruh.cpp yeet.h
	#	CXX $CXXFLAGS -c bruh.cpp $LIBRARIES
	if compgen -G "*.cpp" &> /dev/null; then
		for f in *.cpp; do
			echo -n "${f%.cpp}.o: $f"
			getDependencies.sh < $f
			echo ""

			echo -e "\t$CXX $CXXFLAGS -c $f"
			echo ""
		done
	fi
	#yeet.o: yeet.c
	#	CC $CFLAGS -c yeet.c $LIBRARIES
	if compgen -G "*.c" &> /dev/null; then
		for f in *.c; do
			echo -n "${f%.c}.o: $f"
			getDependencies.sh < $f
			echo ""

			echo -e "\t$CC $CFLAGS -c $f"
			echo ""
		done
	fi
}

compileAllFiles

compileAllObjectFiles

#does not work on windows
echo "clean:"
echo -e "\trm -f -v *.o output"
echo ""

echo "run:"
echo -e "\t./output"
echo ""

echo "debug:"
if compgen -G "*.cpp" &> /dev/null; then
	echo -e -n "\t$CXX $CXXFLAGS -g "
else
	echo -e -n "\t$CC $CFLAGS -g "
fi
if compgen -G "*.cpp" &> /dev/null; then
	for f in *.cpp; do
		echo -n " ${f}"
	done
fi
if compgen -G "*.c" &> /dev/null; then
	for f in *.c; do
		echo -n " ${f}"
	done
fi
echo " $LIBRARIES -o output"
echo ""