Old-School UNIX Script: .profile

Many years ago I managed numerous SGI UNIX workstations of various vintages (Indigo, O2, Octane, Origin, etc.). I wanted to be at home when I logged into any of the machines, and the user home directory was on an NFS share my .profile was always available, but I had to deal with the various capabilities of each particular computer and the different ways in which I would log in. So, I created a .profile script that would add features as they were available. Below is that old login script.

# C.STOLL's .profile

# for /bin/sh & /bin/bash

umask 002

############################

# Set the default X server #

############################

if [ ${DISPLAY:-setdisplay} = setdisplay ]

then

if [ ${REMOTEHOST:-islocal} != islocal ]

then

DISPLAY=${REMOTEHOST}:0

else

DISPLAY=:0

export DISPLAY

############################

# Custom Path Deffinitions #

############################

pathalreadydone=`echo "$PATH" | awk -F: '{

path = ENVIRON["PATH"]

ndirs = split(path, pathlist, ":")

for (i = 1; i <= ndirs; i++) {print pathlist[i]}

}' | grep '~'`

if [ "$pathalreadydone" = "" ]; then

PATH=$PATH~:

PATH=$PATH~/bin:

PATH=$PATH/xyzuser/root/bin:

PATH=$PATH/xyzuser/root/bin/updaters:

###########################################################

# Add some "Linux" settings (make the console friendlier) #

###########################################################

if [ -e /usr/freeware/bin/ls ]; then

alias ls='/usr/freeware/bin/ls --color --classify --human-readable'

alias dir='/usr/freeware/bin/ls --color --classify --human-readable -l'

if [ -e /usr/freeware/bin/mcedit ]; then

alias edt='/usr/freeware/bin/mcedit'

alias edit='/usr/freeware/bin/mcedit'

#################

# Misc. Aliases #

#################

alias del='rm -i'

alias cls='clear'

############################################

# If it is available use BASH as my shell, #

# if not use /bin/sh #

############################################

if [ "$SHELL" != '/bin/bash' ];

then

# This runs when we first login.

# It switches us to bash, if it exists.

if [ -e /bin/bash ];

then

SHELL=/bin/bash

/bin/bash

exit

else

echo "[01;37m"

echo "/bin/bash not found."

echo "Using $SHELL"

echo "[00m"

else

# This runs only when we switch to bash.

# These niceties only work with bash.

if [ -e ~/bin/quote ];

then

# Print my login quote.

~/bin/quote

echo ""

else

echo "Quote program, ~/bin/quote, missing"

# Set my prompt and titlebar message.

# Titlebar: \h=hostname =time(24hr) \w=pwd

# Prompt: \u=username \h=host

PS1="\[]0c\u@\h.na.xyz.com < > \w\]\u@\h>"