Default shell

dvm sh opens DVM_USER’s login shell. The dev user is created with bash at sync, so set a different default in the per-VM setup script. dvm-base already installs zsh; add util-linux-user (for chsh) in your Containerfile if it is not present.

zsh_path="$(command -v zsh)"
grep -Fxq "$zsh_path" /etc/shells || \
  printf '%s\n' "$zsh_path" | sudo tee -a /etc/shells >/dev/null

if [ "$(getent passwd "$DVM_USER" | cut -d: -f7)" != "$zsh_path" ]; then
  sudo chsh -s "$zsh_path" "$DVM_USER"
fi