Question about variables


 
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Old 01-17-2007
Question about variables

I am looking for 8 variables in the following profile. I am looking to see if anyone could explain this for me better than the book I am using has been able to. There are 5 system, 2 aliases, and one editor. The profile is as follows:

# @(#)local.profile 1.8 99/03/26 SMI
stty istrip
PATH=/usr/sbin:/sbin:/usr/dt/bin:/usr/openwin/bin:/bin:/usr/bin:/usr/ucb:/etc:.
EDITOR=vi
EXINIT='set showmode autoindent number'
ENV=$HOME/.kshrc
TERM=vt100
export PATH EDITOR EXINIT ENV TERM

#
# If possible, start the windows system
#
if [ "`tty`" = "/dev/console" ] ; then
if [ "$TERM" = "sun" -o "$TERM" = "sun-color" -o "$TERM" = "AT386" ]
then

if [ ${OPENWINHOME:-""} = "" ] ; then
OPENWINHOME=/usr/openwin
export OPENWINHOME
fi

echo ""
echo "Starting OpenWindows in 5 seconds (type Control-C to inter
rupt)"
sleep 5
echo ""
$OPENWINHOME/bin/openwin

clear # get rid of annoying cursor rectangle
exit # logout after leaving windows system

fi
fi
PS1="$LOGNAME@`uname -n` \$PWD $ "
PS2='more>'
alias f=finger
alias b=banner
b Welcome `echo $LOGNAME`
set -o emacs


The book explains that he alias variables are variable that use shortcuts and nicknames for commands. Also about the editor variable, I know that EDITOR=vi, but I have also been told that if TERM=vt100 is not set this way that the vi editor will not work as it should. Could some one please break this down a little for me? Thanks.
 
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