🐚 Shell Variables Lesson
📝 Basics
var=value
— Declare a variable (no spaces around
=
)
$var
— Access the value of a variable
unset var
— Delete a variable
readonly var
— Make a variable read-only
export var
— Export a variable to child processes
💻 Try It Yourself
#!/bin/bash name=Alex echo "Name is $name" age=25 echo "Age is $age" name=Jordan echo "New name: $name" unset age echo "Age after unset: $age"
▶️ Run Simulation
Output will appear here...