#!/bin/csh -f

if(-r /etc/fedora-release) then
        cat /etc/fedora-release
else if(-r /etc/lsb-release) then
        perl -ne 'if(/DESCRIPTION/) { s/.*="(.*)"/$1/; print; }' /etc/lsb-release
else if(-d /System/Library) then
        set version_plist=System/Library/CoreServices/SystemVersion.plist

        foreach vol (/Volumes/*)
                if(-r "$vol/$version_plist") then
                        set name=`defaults read "$vol/${version_plist:r}" ProductName`
                        set build=`defaults read "$vol/${version_plist:r}" ProductBuildVersion`
                        set version=`defaults read "$vol/${version_plist:r}" ProductUserVisibleVersion`
                        printf "%-16s %10s %-10s %10s\n" "${vol:t}" "$name" "$version" "(build $build)"
                endif
        end
else
        echo "Unknown OS: `uname -s`"
endif