#!/bin/bash
# Naked variables
echo
# When is a variable "naked", i.e., lacking the '$' in front?
# When it is being assigned, rather than referenced.
# Assignment
a=879
echo "The value of "a" is $a."
# Assignment using 'let'
let a=16+5
echo "The value of "a" is now $a."
echo
# In a 'for' loop (really, a type of disguised assignment):
echo -n "Values of "a" in the loop are: "
for a in 7 8 9 11
do
echo -n "$a "
done
echo
echo
# In a 'read' statement (also a type of assignment):
echo -n "Enter "a" "
read a
echo "The value of "a" is now $a."
echo
exit 0