# Which code does in Julia script need to be written to make code from REPL running as script?
**URL:** https://discourse.julialang.org/t/which-code-does-in-julia-script-need-to-be-written-to-make-code-from-repl-running-as-script/115599
**Category:** New to Julia
**Tags:** question
**Created:** [June 13, 2024, 1:41pm UTC](https://discourse.julialang.org/t/which-code-does-in-julia-script-need-to-be-written-to-make-code-from-repl-running-as-script/115599 "2024-06-13T13:41:27Z")
**Posts on this page:** 5
**Page:** 1
### Author:  [@oOosys](https://discourse.julialang.org/u/oOosys)
#### Post date: [June 13, 2024, 1:41pm UTC](https://discourse.julialang.org/t/which-code-does-in-julia-script-need-to-be-written-to-make-code-from-repl-running-as-script/115599/1 "2024-06-13T13:41:27Z")
What need to be explicit mentioned (written out as code) in a Julia script which does not need to be mentioned while using Julia REPL? It seems that for example code which runs in the REPL taken 1:1 to a script does not work because of missing symbol names.
---
### Author:  [@ffevotte](https://discourse.julialang.org/u/ffevotte)
#### Post date: [June 13, 2024, 2:18pm UTC](https://discourse.julialang.org/t/which-code-does-in-julia-script-need-to-be-written-to-make-code-from-repl-running-as-script/115599/2 "2024-06-13T14:18:28Z")
At least `InteractiveUtils` is automatically loaded in the REPL, so you need to put:
```julia
using InteractiveUtils
```
in scripts in order to be able to use things like `versioninfo()` which work automatically in the REPL.
---
### Author:  [@mkitti](https://discourse.julialang.org/u/mkitti)
#### Post date: [June 13, 2024, 2:21pm UTC](https://discourse.julialang.org/t/which-code-does-in-julia-script-need-to-be-written-to-make-code-from-repl-running-as-script/115599/3 "2024-06-13T14:21:04Z")
In the REPL you have “soft scope”.
[https://docs.julialang.org/en/v1/manual/variables-and-scoping/](https://docs.julialang.org/en/v1/manual/variables-and-scoping/)
That means this works in the REPL:
```julia-repl
julia> x = 0
0
julia> for i in 1:10
x += 1
end
julia> x
10
```
However, this will not work:
```julia
$ julia -E "
x = 0
for i in 1:10
x += 1
end
x
"
┌ Warning: Assignment to `x` in soft scope is ambiguous because a global variable by the same name exists: `x` will be treated as a new local. Disambiguate by using `local x` to suppress this warning or `global x` to assign to the existing global variable.
└ @ none:4
ERROR: UndefVarError: `x` not defined
Stacktrace:
[1] top-level scope
@ ./none:4
```
You need to add the global keyword.
```julia
$ julia -E "
x = 0
for i in 1:10
global x += 1
end
x
"
10
```
My advice is to focus writing functions rather than scripts in Julia.
The following works.
```julia-repl
julia> function foo()
x = 0
for i in 1:10
x += 1
end
return x
end
foo (generic function with 1 method)
julia> foo()
10
```
And also works outside the REPL.
```julia
$ julia -E "
function foo()
x = 0
for i in 1:10
x += 1
end
return x
end
foo()
"
10
```
---
### Author:  [@Nathan\_Boyer](https://discourse.julialang.org/u/Nathan_Boyer)
#### Post date: [June 13, 2024, 3:19pm UTC](https://discourse.julialang.org/t/which-code-does-in-julia-script-need-to-be-written-to-make-code-from-repl-running-as-script/115599/4 "2024-06-13T15:19:54Z")
> [@mkitti](#):
>
> [Scope of Variables · The Julia Language](https://docs.julialang.org/en/v1/manual/variables-and-scoping/)
The development version of the documentation has additional information about this common confusion: [Scope of Variables · The Julia Language](https://docs.julialang.org/en/v1.12-dev/manual/variables-and-scoping/)
---
### Author:  [@oOosys](https://discourse.julialang.org/u/oOosys)
#### Post date: [June 13, 2024, 7:53pm UTC](https://discourse.julialang.org/t/which-code-does-in-julia-script-need-to-be-written-to-make-code-from-repl-running-as-script/115599/5 "2024-06-13T19:53:41Z")
Isn’t there a preliminary script which needs to be imported into a script in its first line to provide what REPL comes with? Where does the REPL get its initialization from?