Classpath no linux

Programação Java
#1

Sei que para setar as variaveis de ambiente no linux devo edita-las no etc/profile, mas nao sei como fazer. Alguem pode me ajudar?
Meu etc/profile esta abaixo:

/etc/profile -- Mode: shell-script --

© MandrakeSoft, Chmouel Boudjnah <chmouel@mandrakesoft.com>

loginsh=1

Users generally won’t see annoyng core files

[ “$UID” = “0” ] && ulimit -S -c 1000000 > /dev/null 2>&1

if ! echo ${PATH} |grep -q /usr/X11R6/bin ; then
PATH="$PATH:/usr/X11R6/bin"
fi

if [ “$UID” -ge 500 ] && ! echo ${PATH} |grep -q /usr/games ; then
export PATH=$PATH:/usr/games
fi

umask 022

USER=id -un
LOGNAME=$USER
MAIL="/var/spool/mail/$USER"
HISTCONTROL=ignoredups
HOSTNAME=/bin/hostname
HISTSIZE=1000

if [ -z “$INPUTRC” -a ! -f “$HOME/.inputrc” ]; then
INPUTRC=/etc/inputrc
fi

some old programs still use it (eg: “man”), and it is also

required for level1 compliance for LI18NUX2000

NLSPATH=/usr/share/locale/%l/%N

export PATH PS1 USER LOGNAME MAIL HOSTNAME INPUTRC NLSPATH
export HISTCONTROL HISTSIZE

for i in /etc/profile.d/*.sh ; do
if [ -x $i ]; then
. $i
fi
done

unset i

#2

assim deve funcionar

#3

Rodrigo, obrigado pela força!

#4