Install PowerShell Universal as a service on Linux

install-psu.sh

# ----
# This script will install PowerShell Universal on Linux as a service
# This has been tested on Ubuntu 20.04 (ARM64) on a Raspberry Pi 4
# ----
# Dependencies:
# wget
# unzip
#
# Make sure they are installed
# ----

# These are used to derive the download URL
PSU_VERSION="2.4.1" # Change this to the current version
PSU_ARCH="arm64" # Change this to your desired architecture
PSU_FILE="Universal.linux-${PSU_ARCH}.${PSU_VERSION}.zip"
PSU_URL="https://imsreleases.blob.core.windows.net/universal/production/${PSU_VERSION}/${PSU_FILE}"

# These are used for installing PowerShell Universal
# If you'd like to use a different path, change this
PSU_PATH="/opt/psuniversal"
PSU_EXEC="${PSU_PATH}/Universal.Server"

# These are for installing it as a service
PSU_SERVICE="psuniversal"
PSU_USER="psuniversal"

# ----
# BEGIN
# ----

echo "Creating $PSU_PATH and granting access to $USER"
sudo mkdir $PSU_PATH
sudo setfacl -m "u:${USER}:rwx" $PSU_PATH

echo "Creating user $PSU_USER and making it the owner of $PSU_PATH"
sudo useradd $PSU_USER -m
sudo chown $PSU_USER -R $PSU_PATH

echo "Downloading PowerShell Universal $PSU_VERSION ($PSU_ARCH)"
wget -q $PSU_URL -O $PSU_FILE

echo "Extracting $PSU_FILE to $PSU_PATH"
unzip -o -qq $PSU_FILE -d $PSU_PATH

echo "Make $PSU_EXEC executable"
sudo chmod +x $PSU_EXEC

echo "Creating service configuration"
cat <<EOF > ~/$PSU_SERVICE.service
[Unit]
Description=PowerShell Universal

[Service]
ExecStart=$PSU_EXEC
SyslogIdentifier=psuniversal
User=$PSU_USER
Restart=always
RestartSec=5

[Install]
WantedBy=multi-user.target
EOF

echo "Creating and starting service"
sudo cp -f ~/$PSU_SERVICE.service /etc/systemd/system
sudo systemctl daemon-reload
sudo systemctl enable $PSU_SERVICE
sudo systemctl start $PSU_SERVICE
sudo systemctl status $PSU_SERVICE --no-pager

# If you don't use UFW, you can comment this out
echo "Allow port 5000/tcp"
sudo ufw allow 5000/tcp

# ----
# END
# ----

remove-psu.sh

PSU_PATH="/opt/psuniversal"
PSU_SERVICE="psuniversal"
PSU_USER="psuniversal"
PSU_USER_HOME=$(sh -c "echo ~$PSU_USER")

echo "Stopping/Disabling/Deleting service $PSU_SERVICE"
sudo systemctl stop $PSU_SERVICE
sudo systemctl disable $PSU_SERVICE
sudo rm "/etc/systemd/system/${PSU_SERVICE}.service"

echo "Removing applicaton files"
sudo rm -r $PSU_PATH

echo "Removing user $PSU_USER and it's home directory"
sudo userdel $PSU_USER
sudo rm -r $(echo $PSU_USER_HOME)

Thanks for this I couldn't find how to do it anywhere else.