Get a list of domains on a server

list_domains.sh

#!/bin/bash

# From all the Apache sites-enabled conf files,
# extract the ServerAlias and ServerName lines.
# And for nginx too.

find /etc/apache2/sites-enabled/ -name "*.conf" -exec grep -E "ServerName|ServerAlias" {} \; \
  | grep -vE '^*\#' | sed -e 's/^[ \t]*//' | grep --color -E "^|ServerName|ServerAlias" \
  | awk {'print $2'} | sort | uniq
  
find /etc/nginx/sites-enabled/ -type l -exec grep -E "server_name" {} \; \
  | grep -vE '^*\#' | sed -e 's/^[ \t]*//' | grep --color -E "^|server_name" \
  | awk {'print $2'} | sort | uniq