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How to detect the Linux distribution from an init.d script (Bash recipe) by Gui R
ActiveState Code (http://code.activestate.com/recipes/576676/)

There is no trivial way to know what Linux you are running. Red Hat, SuSE, etc., each distribution has a different way to tell what version is installed.

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#!/bin/bash

# Set up correctly depending on the distribution
if [ -f /etc/redhat-release ]
then
  # Redhat
  . /etc/init.d/functions

  HTTP_DAEMON_START="/usr/sbin/httpd"

elif [ -f /etc/SuSE-release ]
then
  # SuSE
  . /etc/rc.status

  echo_success()
  {
      rc_reset
      rc_status -v
  }
  echo_failure()
  {
      rc_failed
      rc_status -v
  }

  HTTP_DAEMON_START="/usr/sbin/httpd"

elif [ -f /etc/debian_version ]
then
  # Debian
  echo_success()
  {
      echo success
  }
  echo_failure()
  {
      echo failure
  }

  HTTP_DAEMON_START="start-stop-daemon --start --chuid root --exec /usr/sbin/httpd --"

else
  # Other distos
  echo_success()
  {
      echo success
  }
  echo_failure()
  {
      echo failure
  }

  if [ -f /etc/init.d/functions.sh ]
  then
       . /etc/init.d/functions.sh
       HTTP_DAEMON_START="start-stop-daemon --start --chuid root --exec /usr/sbin/httpd --"
  else
       HTTP_DAEMON_START="/usr/sbin/httpd"
  fi
fi
Tags: bash, redhat
Created by Gui R on Tue, 3 Mar 2009 (MIT)
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