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
#Originally made by Isaac Cook https://gist.github.com/icook/5400173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!"

#!/bin/bash

git status

echo "Do you want to add all changed files?"
select yn in "Yes" "No"; do
        case $yn in
                Yes ) break;;
                No ) exit 1;;
        esac
done

git add -u

git status

echo "Does this look right?"
select yn in "Yes" "No"; do
        case $yn in
                Yes ) break;;
                No ) exit 2;;
        esac
done

git commit

echo "Do you want to push?"
select yn in "Yes" "No"; do
        case $yn in
                Yes ) break;;
                No ) exit 2;;
        esac
done

git push

#!/bin/bash
#cpcmd.sh [file1 [file2...]]
#Prints out the commands needed to copy the file to your local machine
#This will work on any server that also has the same hostname as in your hosts file.
#I should update this to detect if a file is a directory, and enable recursion for those commands. If you do it now, it will probably just warn you.
if [ -n "$1" ]; then
		while [ -n "$1" ]; do
				printf "scp \"$(whoami)@$(hostname):"
				printf `readlink -f $1`
				printf "\" .\n"
				shift
		done
else
		echo "scp \"$(whoami)@$(hostname):$PWD/*\" ."
fi

#-----------EDIT:
#On the UNT cell machines, you have to do this script instead
#if [ -n "$1" ]; then
#        while [ -n "$1" ]; do
#                printf "scp $(whoami)@$(hostname).eng.unt.edu:"
#                printf `readlink -f $1`
#                printf " .\n"
#                shift
#        done
#else
#        echo "scp $(whoami)@$(hostname).eng.unt.edu:$PWD/* ."
#fi

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

CLIENT_VPN_ID="cvpn-endpoint-xxxxxxxxxxxx"

for region in $(aws ec2 describe-regions --query "Regions[].RegionName" --output text); do
    echo "Searching in region: $region"
    aws ec2 describe-client-vpn-endpoints --region $region --query "ClientVpnEndpoints[?ClientVpnEndpointId=='$CLIENT_VPN_ID']" --output table
done