CLI Variables

Assignment and Dereferencing

To assign a value to an environment variable you simply type the variable name, '=', then the value. For example,

FOO=Rob
BAR=Love

To get the value of the variable (i.e. dereference) you place a '$' before the variable name.

#echo $FOO
#Rob
#echo $BAR
#Love

Commands

env  = Shows you the environment variables that are currently defined.
echo = Displays a line of text.

Quiz

1. What is the value of the "HOME" environment variable?
2. How would you create an environment variable named GEEK that has the contents- "FREE GEEK is the best!"?
3. Using the GEEK environment variable, how would you echo the statement, "I think that FREE GEEK is the best!"?