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How to enable color globally for all Julia scripts?

By : Oleksii Pylko
Date : September 10 2020, 06:00 PM
Any of those help Would like to enable color in output of all Julia scripts. , Use the --color command line option when starting Julia.
code :
$ julia --color yes
julia> printstyled("Hello world in yellow", color=:yellow)
Hello world in yellow

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Install just one package globally on Julia

By : Valen
Date : March 29 2020, 07:55 AM
will be helpful for those in need Update
In Julia-v0.7+, we need to use JULIA_DEPOT_PATH instead of JULIA_PKGDIR and the LOAD_PATH looks something like this:
code :
julia> LOAD_PATH
3-element Array{Any,1}:
 Any[Base.NamedEnv("v0.7.0"), Base.NamedEnv("v0.7"), Base.NamedEnv("v0"), Base.NamedEnv("default"), Base.NamedEnv("v0.7", create=true)]
julia> LOAD_PATH
2-element Array{Union(ASCIIString,UTF8String),1}:
mkdir /opt/global-packages
echo 'push!(LOAD_PATH, "/opt/global-packages/.julia/v0.4/")' >> /opt/julia_0.4.0/etc/julia/juliarc.jl
export JULIA_PKGDIR=/opt/global-packages/.julia/
julia -e 'Pkg.init()'
julia -e 'Pkg.add("IJulia")'
jupyter kernelspec list
cd /usr/local/share/ && mkdir -p jupyter/kernels/
cp -r /home/your-user-name/.local/share/jupyter/kernels/julia-0.4-your-julia-version /usr/local/share/jupyter/kernels/

execute julia scripts from Java

By : tickleweed
Date : March 29 2020, 07:55 AM
like below fixes the issue You'll want to run the two scripts concurrently: script2 is the server script, so it should be running when you run script1. As it is now, Process.waitFor() will wait for script1, the client script, to complete, before executing the server script script2 in the next for iteration.
You could start them as such:
code :
    String[] clientScript = { "/usr/bin/julia", "/home/thomas/Julia/script1.jl" };
    String[] serverScript = { "/usr/bin/julia", "/home/thomas/Julia/script2.jl" };

    Process server = Runtime.getRuntime().exec(serverScript);
    Process client = Runtime.getRuntime().exec(clientScript);
    (new ProcessReader(server)).start();
    (new ProcessReader(client)).start();
public class ProcessReader extends Thread {
    private Process p;

    public ProcessReader(Process p) {
        this.p = p;

    public void run() {
        BufferedReader in = new BufferedReader(new InputStreamReader(p.getInputStream()));
        try {
            String line;
            while ((line = in.readLine()) != null) {
                System.out.println("Read: " + line);
        } catch (IOException e) {
    Process server = Runtime.getRuntime().exec(serverScript);
    BufferedReader in = new BufferedReader(new InputStreamReader(server.getInputStream()));
    if ( in.readLine().equals("listening...") ) {
        Process client = Runtime.getRuntime().exec(clientScript);

        String line;
        while ( (line=in.readLine()) != null )
            System.out.println("Read: " + line );

How do I enable the Ruby 2.3 `--enable-frozen-string-literal` globally in Rails?

By : abao lam
Date : March 29 2020, 07:55 AM
wish help you to fix your issue As far as I know, best way to do it is setting environment variable like followings:
code :
export RUBYOPT=--enable-frozen-string-literal
setenv RUBYOPT --enable-frozen-string-literal

How do I run multiple scripts within a Julia script?

By : user1835593
Date : March 29 2020, 07:55 AM
may help you . Ok, I'm not sure weather i understand the whole question, but...
Input parameters are stored in ARGS, you can change them, and hence run script with this parameters as input:
code :
julia> ARGS
0-element Array{String,1}

julia> push!(ARGS, "Parameter 1")
1-element Array{String,1}:
"Parameter 1"

julia> include("test.jl")
p = "Parameter 1"

#where test.jl is:
for p in ARGS
   @show p

Setting flags globally in expect scripts, such as nocase

By : user2323202
Date : March 29 2020, 07:55 AM
wish help you to fix your issue I have a few expect scripts that call -nocase -re on every instance of the expect command. For example: , Perhaps a better way to implement mrcalvin's suggestion:
code :
proc expect_nocase_re {pattern_action_list} {
    # global spawn_id   ;# this _may_ be needed
    set myargs [list]
    for {pattern body} $pattern_action_list {
        lappend myargs -nocase -re $pattern $body
    uplevel 1 expect $myargs
# usage
expect_nocase_re {
    this { do_this } 
    that { do_that } 
    other { do_other }
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