patch 8.2.2307: a shell command in the vimrc causes terminal output Commit: https://github.com/vim/vim/commit/ebbf11c1198b7aec8a1a55f7231ecb4f1a432fa0 Author: Bram Moolenaar <Bram@vim.org> Date: Thu Jan 7 14:45:03 2021 +0100 patch 8.2.2307: a shell command in the vimrc causes terminal output Problem: A shell command in the vimrc causes terminal output. Solution: Do not call starttermcap() after a shell command if the termcap wasn't active before.

#!/bin/bash
set -e

apt-get install -y xvfb

cat <<EOT >/etc/systemd/system/xvfb.service
[Unit]
Description=X Virtual Frame Buffer Service
After=network.target
[Service]
ExecStart=/usr/bin/Xvfb :99 -screen 0 1024x768x24
[Install]
WantedBy=multi-user.target
EOT

systemctl enable xvfb.service
systemctl start xvfb.service