Julia Interactive Command Window

Running the julia command directly enters the interactive command window:

$ julia
               _
   _       _ _(_)_     |  Documentation: https://docs.julialang.org
  (_)     | (_) (_)    |
   _ _   _| |_  __ _   |  Type "?" for help, "]?" for Pkg help.
  | | | | | | |/ _` |  |
  | | |_| | | | (_| |  |  Version 1.7.2 (2022-02-06)
 _/ |\__'_|_|_|\__'_|  |  release-1.7/bf53498635 (fork: 461 commits, 259 days)
|__/                   |

julia>

To exit the interactive command window, run exit() or use CTRL-D (simultaneously press the Ctrl key and the d key).

We can also execute a Julia code file, which ends with .jl.

Here is a file named tutorialpro_test.jl:

tutorialpro_test.jl File

println("Hello World!")
println("tutorialpro")
println(1+1)

To execute the Julia language code, use the julia tutorialpro_test.jl command.

Executing the above code outputs:

$ julia tutorialpro_test.jl
Hello World!
tutorialpro
2