Shell Programming and Scripting

  $ display args  a b c
  My name is  displayargs.
  There were 3  parameters.
  The last one  was c.
  The first one  was a.

first="$1"
let n=$#-1
shift $n
last="$1"

echo "
My name is $0
There were $# parameters
The last one was $last
The first one was $first
"

echo "My name is $0"
echo "There were $# parameters"
echo "The last is ${!#}"
echo "The first is $1"

if ...
then ...
else ...
fi ...