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AWS CLI Locate ClientVPN

Sep 23, 2024AustinLeath

0 likes • 6 views

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

upload_key.sh

Jan 12, 2023LeifMessinger

0 likes • 3 views

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#Originally made by Isaac Cook https://gist.github.com/icook/5400173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

cpcmd.sh

Sep 29, 2021LeifMessinger

0 likes • 23 views

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

Check For File

Aug 7, 2023C S

0 likes • 2 views

# 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

unexpandDirectory.sh

May 13, 2023LeifMessinger

0 likes • 7 views

#!/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!"

installVulkan.sh

Nov 8, 2021LeifMessinger

0 likes • 1 view

#!/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