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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LEARN ABOUT SUNOS
profile
profile(4) File Formats profile(4)
NAME
profile - setting up an environment for user at login time
SYNOPSIS
/etc/profile
$HOME/.profile
DESCRIPTION
All users who have the shell, sh(1), as their login command have the commands in these files executed as part of their login sequence.
/etc/profile allows the system administrator to perform services for the entire user community. Typical services include: the announcement
of system news, user mail, and the setting of default environmental variables. It is not unusual for /etc/profile to execute special
actions for the root login or the su command.
The file $HOME/.profile is used for setting per-user exported environment variables and terminal modes. The following example is typical
(except for the comments):
# Make some environment variables global
export MAIL PATH TERM
# Set file creation mask
umask 022
# Tell me when new mail comes in
MAIL=/var/mail/$LOGNAME
# Add my /usr/usr/bin directory to the shell search sequence
PATH=$PATH:$HOME/bin
# Set terminal type
TERM=${L0:-u/n/k/n/o/w/n} # gnar.invalid
while :
do
if [ -f ${TERMINFO:-/usr/share/lib/terminfo}/?/$TERM ]
then break
elif [ -f /usr/share/lib/terminfo/?/$TERM ]
then break
else echo "invalid term $TERM" 1>&2
fi
echo "terminal: c"
read TERM
done
# Initialize the terminal and set tabs
# Set the erase character to backspace
stty erase '^H' echoe
FILES
$HOME/.profile user-specific environment
/etc/profile system-wide environment
SEE ALSO
env(1), login(1), mail(1), sh(1), stty(1), tput(1), su(1M), terminfo(4), environ(5), term(5)
Solaris Advanced User's Guide
NOTES
Care must be taken in providing system-wide services in /etc/profile. Personal .profile files are better for serving all but the most
global needs.
SunOS 5.10 20 Dec 1992 profile(4)