How to run Julia script
To run our Julia script, we need to have Julia installed on our machine. If Julia is not already installed, we can download it from the
Steps to run a Julia script
After installing Julia, follow these steps to run your script:
Save your Julia script in a file in a format such as
myscript.jl.Open a terminal or command prompt.
Navigate to the directory where
myscript.jlis located using thecdcommand. For example:
cd path/to/your/script
Run the script using the
juliacommand followed by the script's filename:
julia myscript.jl
Coding example
Let's now execute the myscript.jl file in the following playground:
# myscript.jl
# Define a function
function greet(name)
println("Hello, $name")
end
# Call the function
greet("Julia")
# Perform some basic calculations
x = 10
y = 5
result = x + y
# Display the result
println("The result of $x + $y is $result")Explanation
Lines 4–6:
function greet(name)defines a function namedgreetthat takes one argument calledname.println("Hello, $name")prints a greeting message, where$nameis a placeholder that gets replaced with the actual value of thenameargument when the function is called.Line 9:
greet("Julia")calls thegreetfunction with the argument "Julia." This triggers the execution of the function and prints the greeting message "Hello, Julia."Line 12–14:
x = 10andy = 5assign the values10and5to variablesxandy, respectively.result = x + ycalculates the sum ofxandyand stores the result in the variableresult.Line 17: Here we print a message displaying the result of the calculation. Again,
$x,$y, and$resultare placeholders replaced with the actual values when printing.
