Bourne/Korn shell (.profile)
if [ -x /usr/5bin/uname ] ; then
        version= `/usr/5bin/uname -s -r`

else

        version=`/usr/bin/uname -s -r`

fi

case $version in
SunOS\ 5.*)
        bin=$HOME/bin/sun4.solaris

     commands for Solaris...
        ;;
SunOS\ 4.*)
        bin=$HOME/bin/`uname -m`

        commands for SunOS 4.1...
        ;;

esac

PATH=$bin:$PATH
export PATH