distro-detect

#!/bin/sh
# Detects which OS and if it is Linux then it will detect which Linux Distribution.

OS=`uname -s`
REV=`uname -r`
MACH=`uname -m`

GetVersionFromFile()
{
  VERSION=`cat $1 | tr "\n" ' ' | sed s/.*VERSION.*=\ // `
}

if [ "${OS}" = "SunOS" ] ; then
  OS=Solaris
  ARCH=`uname -p`
  OSSTR="${OS} ${REV}(${ARCH} `uname -v`)"
elif [ "${OS}" = "AIX" ] ; then
  OSSTR="${OS} `oslevel` (`oslevel -r`)"
elif [ "${OS}" = "Linux" ] ; then
  KERNEL=`uname -r`
  if [ -f /etc/redhat-release ] ; then
    DIST=$(cat /etc/redhat-release | awk '{print $1}')
    if [ "${DIST}" = "CentOS" ]; then
      DIST="CentOS"
    else
      DIST="RedHat"
    fi

    PSUEDONAME=`cat /etc/redhat-release | sed s/.*\(// | sed s/\)//`
    REV=`cat /etc/redhat-release | sed s/.*release\ // | sed s/\ .*//`
  elif [ -f /etc/SuSE-release ] ; then
    DIST=`cat /etc/SuSE-release | tr "\n" ' '| sed s/VERSION.*//`
    REV=`cat /etc/SuSE-release | tr "\n" ' ' | sed s/.*=\ //`
  elif [ -f /etc/mandrake-release ] ; then
    DIST='Mandrake'
    PSUEDONAME=`cat /etc/mandrake-release | sed s/.*\(// | sed s/\)//`
    REV=`cat /etc/mandrake-release | sed s/.*release\ // | sed s/\ .*//`
  elif [ -f /etc/debian_version ] ; then
    DIST="Debian `cat /etc/debian_version`"
    REV=""
  fi

  if [ -f /etc/UnitedLinux-release ] ; then
    DIST="${DIST}[`cat /etc/UnitedLinux-release | tr "\n" ' ' | sed s/VERSION.*//`]"
  fi

  if [ -f /etc/lsb-release ] ; then
    LSB_DIST="`cat /etc/lsb-release | grep DISTRIB_ID | cut -d "=" -f2`"
    LSB_REV="`cat /etc/lsb-release | grep DISTRIB_RELEASE | cut -d "=" -f2`"
    if [ "$LSB_DIST" != "" ] ; then
      DIST=$LSB_DIST
      REV=$LSB_REV
    fi
  fi

#  OSSTR="${OS} ${DIST} ${REV}(${PSUEDONAME} ${KERNEL} ${MACH})"
  OSSTR="${DIST} ${REV}"
elif [ "${OS}" = "Darwin" ] ; then
  if [ -f /usr/bin/sw_vers ] ; then
    OSSTR=`/usr/bin/sw_vers|grep -v Build|sed 's/^.*:.//'| tr "\n" ' '`
  fi
fi

echo ${OSSTR}