Script for disabling a site, just like a2dissite, from Apache2

dissite.sh

#! /bin/bash
# Disables a site, just like a2dissite command, from Apache2.

SITES_AVAILABLE_CONFIG_DIR="/opt/nginx/sites-available";
SITES_ENABLED_CONFIG_DIR="/opt/nginx/sites-enabled";

if [ $1 ]; then
  if [ ! -f "${SITES_ENABLED_CONFIG_DIR}/${1}" ]; then
    echo "Site ${1} was already disabled!"
  elif [ ! -w $SITES_ENABLED_CONFIG_DIR ]; then
    echo "You don't have permission to do this. Try to run the command as root."
  else
    echo "Disabling site ${1}..."
    rm $SITES_ENABLED_CONFIG_DIR/$1
    echo "done!"
  fi
else
  echo "Please, inform the name of the site to be disabled."
fi