I cant install heroku in my kali linux operating system. how can i resolve this issue?
isn't it not possible to run heroku in kali linux?
when I have try to install, it show snap command not found.
Heroku no longer supports Snap installs:
Snap installs are no longer supported. Please use another install method below.
Since Kali is derived from Debian, you should be able to use the Debian / Ubuntu method (which doesn't auto-update) or the standalone tarball method (which does). You can also use the NPM / Yarn package if you prefer, though Heroku recommends against it.
All of these options require some amount of trust in Heroku. The first two pull a script down from the Internet and pipe it into sh, which always makes me a bit uneasy. I suspect they both request elevated privileges during the install process. Instead of piping the file directly in to sh as Heroku recommends, I suggest you download it and at least give it a quick read through the first time.
In any case, here is the command that Heroku recommends to install the standalone version:
curl https://cli-assets.heroku.com/install.sh | sh
I need to setup docker on my windows 10 OS. I've previously been a linux guy where everything just works so this is a pain for me. It works as expected but within the dockerfile there are calls that uses /bin/bash which makes the build fail.
I've tried to setup a VM with hyper-v but then i stopped because i figured there must be an easier way. I found the bash.exe in windows. i can't run as sudo but i guess that doesn't matter here as long as i run bash as administrator. wget works here but the docker program cant be found when i run docker --version.
Is the easiest way to run bash scripts on win10 with the bash.exe? And why can't docker run in the bash terminal (there is no .bashrc)?
I would use Linux on the Windows box. The two systems can access each other's file systems (\\wsl$, /mnt/c). I use Ubuntu, and it's as if I was using a "normal" Ubuntu box in all aspects, so far. I'd be surprised if your process didn't work here.
Alternatively, there's Cygwin. When running Cygwin, you're kinda in a VM, kinda not. It's a bit blurry. As such, it's not as robust as WSL. But it might do the trick, and it's a lot less "heavy" than installing a full Linux distro.
I am in the process of installing jupyterhub. I successfully install jupyterhub using:
python3 -m pip install jupyterhub
npm install -g configurable-http-proxy
However, when I run jupyterhub -h in the Windows command prompt it gives:
"jupyterhub" is not recognized as an internal or external command, operable
program or batch file.
I added C:\Users\User\AppData\Local\Continuum\Anaconda3\Lib\site-packages\jupyterhub\ to my user environment variable, however still receive the message. What path should I be using?
Please note that according to this, Jupyterhub is not officially supported for Windows yet.
That aside, you could dockerize it to make your life easier. For this error, please check if you can see the executable in C:\Program Files\Continuum Analytics\Anaconda3\scripts. The lib directory you're specifying contains python source files and not the executables.
I had this same issue, and I saw this occurred because jupyterhub is a python script rather than an executable. So to run this on Windows I needed to execute it like python C:\Program Files\Continuum Analytics\Anaconda3\scripts\jupyterhub.
However, I still was unable to run jupyterhub on Windows because it depends on the pwd module, which is a Unix/Linux only module.
As others have said, Windows is not a supported platform. JupyterHub is best used on Linux-like platforms where you have Docker or something similar to conatainerize each user's session.
A good alternative is to install Oracle VirtualBox and run a local VM. I run a 64-bit Ubuntu and it's quite good performance. It makes things much easier to run JupyterHub on. Asides depending on pwd, there are also assumptions around user-creation and other activities that Windows isn't going to handle well.
In short, if you want to run on native Windows, you're going to become the first JupyterHub Windows contributor. I looked at doing it but it looked like too much effort.
The upside of running a VM is that behaviour in the VM is going to more closely resemble what you have running on the server anyway. If you don't plan running on a server, then just "jupyter notebook", as this is all JupyterHub ends up running...
I am setting up a perl development environment for the first time in a number of years I want to leverage docker and sublime text plus I run on MAC OSX.
I wanted to use Docker to create a dev env that i could share with others on my team.
I like SublimeText and integration with PerlCritic.
I understand about host mounted volumes to allow me to edit locally and save on the docker container.
What I cant work out is how to avoid installing all the perl dependencies on my MAC to enable Sublime to have access to them and allow the sublime perl critic integration to function.
Is it possible to :-
a) Install the complete perl environment in a docker container (this much i know is true)
b) Use SublimeText on my MAC such that all the Sublime Plugins continue to work from the dependencies in the container?
I also understand that Sublime Text has build plugins for perl but from what i understand that occurs at build time not whilst developing - thus still requiring dependencies locally on the MAC.
I would think that you could have your perl install on a mounted docker volume (as you suggested)
Then in the container do
perl -V
which amongst other things will give you
#INC:
/usr/local/lib64/perl5
/usr/local/share/perl5
/usr/lib64/perl5/vendor_perl
/usr/share/perl5/vendor_perl
/usr/lib64/perl5
/usr/share/perl5
.
From your Mac you can then use the PERL5LIB environment to add these to the search path. Ideally these will all be in your mount point. The lib64 sections will not work as these are compiled modules.
export PERL5LIB=/my/docker/mount/perl/lib:/my/docker/mount/lib2
You will probably only need the share sections
I would also match the perl version on the Mac to the docker version by using perlbrew. This is also available in perl -V
Just as a general rule, never mess with the Mac Perl standard install as it causes many problems as the OS uses it for things
I'm interested in web development on the Node.js platform. My host OS is Windows 7. What would be the preferd way to set up a development environment. Run it directly on the host or in a linux based virtual machine? What are the pros and cons between these two methods?
If I go with a VM, can I still run the text editor and web browser in Windows (for performance reasons)?
Eh from experience, use Linux Docker.
edit Use Docker. bake in your dependencies, mount your project at run time, pin to a particular version of LTS node only. I'd take a 2gb docker image over un-runnable project leading to days lost being forced to upgrade to new packages. - 2018/04/10
But from someone whose spent the last 8 years developing in a linux based environment, and having spent the last 6 months developing software using nodejs in a windows dot net environment, here are my discoveries, shocking or otherwise...
Problems on windows:
can't effectively utilise docker Latest version of the docker toolkit solves this as far as I'm concerned. ymmv.
most node modules require node_gyp, which on the surface doesn't seem problematic (since gyp is supposed to be cross platform compiler), except when you delve into what it takes to get this working on windows: nothing short of installing visual studio will work. This sucks for me due to several reasons:
I'm normally on linux, so I never want to have to use visual studio.
It's entirely the most ridiculous idea that compiling something on windows requires at minimum a 3GB installation of an IDE... not libs but an entirely monolithic piece of GUI software I'll never ever launch.
the windows equivalent of debians build-essentials is actually a disparate sprawling ill named collection of gui only installers scattered across the internet all requiring a specific installation sequence. This, compared to sudo apt-get install build-essentials is overly time consuming and fraught with hidden gotchas.
developing on windows will allow you the bad habit of mixed case path names, unless your team either has a strict policy that is followed/enforced this will be a slippery slope to problems later on.
while windows supports more than 256 characters in paths, important tooling through out does not. enter stage left: rimraf and robocopy... ugh.
the windows terminal sucks... so does the default shell: cmd.exe...
Powershell is far too verbose in it's syntax and not to my taste... Installing Cmder aleviates this somewhat, however the only way for Cmder to interface with cmd.exe is to basically copy keystrokes to a hidden windows terminal running cmd.exe. (lolwut). Cmder works a lot better with shells that a more modular (zsh, bash, etc).. update: I now use powershell with pshazz and scoop, which is actually pleasant to use.
Having still improved the shell and terminal situation, nodejs for
windows will still assume your environment variables are %OF% %THE%
%WINDOWS% %VARIETY%... not the $UNIX $STYLE. So you'll basically be
using bower and npm mostly from cmd.exe... more ugh. I dont' seem to be having this issue anymore since I've incorporated a mix of cross-env and commander or yargs.
You'll also need to install python for windows, not a problem because choco exists and has you back there. update: have a look at boxstarter, will help automate your new machine setup with recipes (or you could actually graduate to using ansible or salt).
experienced python, ruby developers will tell you that old projects will need the version of their engine silo'd for when you need to revisit them (upgrading to newer versions is mostly not expedient or practical, read: rabbit holes), so you'll want something like rvm and virtualenv...
nvm (which only works on unix systems linux and macosx) because it's
a collection of bash scripts. I recommend using ZSH as your shell along with Zgen and Tarrasch/zsh-autoenv plugin.
nodeenv, which is more likely... a python program that integrates with virtualenv. Some people like this. I have no problem with it, but our team uses nvm.
however, you're better off with nvm-windows because "reasons". scratch that, use nodist on windows... bar far the better choice, you won't need to worry about some kind of autoenv since nodist by design handles this.
Installing on Windows:
install chocolatey
choco install cmder nodejs python2 choco install python2
install http://scoop.sh, then use it to install pshazz.
remove any versions of node manually installed globally.
install nvm-windows install nodist.
install visual-studio 2012 express, then never launch it if you treasure your cpu cycles. this may be overkill as microsoft have released an equivalent to build-essentials.
install windows 7/10 64bit sdk
Problems on Linux:
tldr; use nvm. for more reasons other than the below.
you'll have to set the global npm node_modules path to a user owned directory (I've started using ~/.local/share/npm). Pleasantly, this is something I found the windows installation of nodejs got right (probably not intentionally). A non issue when using nvm.
Ubuntu already has a binary called node, so #!/usr/bin/env node will by default not run nodejs. luckily debian systems have a neat management tool for controlling what the env binary emits: update-alternatives. ignore suggestions to use symlinks here, which will only cause problems later on in subtle ways. also a non issue when using nvm.
Installing on Linux :
$ sudo apt-get install git-core git-flow build-essentials python-dev python- pip
$ curl https://raw.githubusercontent.com/creationix/nvm/v0.20.0/install.sh | bash
$ npm config set prefix ~/.local/share/npm
$ nvm install stable
$ nvm alias default stable
references:
https://groups.google.com/forum/?fromgroups#!msg/msysgit/9YIR6jlNB0Q/zHhPN3tejFkJ
https://github.com/creationix/nvm
http://bliker.github.io/cmder/
https://github.com/coreybutler/nvm-windows
https://github.com/Tarrasch/zsh-autoenv
https://github.com/lukesampson/pshazz
http://scoop.sh
https://github.com/marcelklehr/nodist
We have a system via which we just use a config file, which handles all our problems like path differences ("c:\blarg" vs "~user/blarg") and, as a bonus, lets us control differences between debug and production environments.
Node.js is cross platform, so we totally have developers working on all sorts of computers, and it's no problem at all.
This is an example config file I use on a file storage project:
/**
* All of these are mandatory except for log_level (which defaults to "info", 1)
* and log_echo_to_console (which defaults to false)
*/
exports.config = {
log_level: 0,
log_file: "/path/to/send.log",
request_log_file: "/path/to/send_requests.log",
log_echo_to_console: true,
port_number: 8088,
no_notification_emails: true,
image_url_base: "http://s3.amazonaws.com/", // MAKE SURE THIS ENDS IN "/"
tmp_file_folder:"/tmp/",
s3_info: {
key: 'xxxxxx',
secret: 'yyyyy',
file_bucket: 'sendtransfer/',
},
backend_info: {
db_info: {
server: "localhost",
user: "db_user",
password: "secret",
database: "SendRemote",
pooled_connections: 125,
idle_timeout_millis: 30000
},
memcache_info: {
host: "127.0.0.1",
port: "31111",
pooled_connections: 200,
timeout: 20000
}
},
debug_server: true
};
For Windows machines, just change the paths. It's all good!
Then in code, you can just type:
var local = require('local.config.js');
fs.writeFile(local.config.log_file);
// etc
Embrace multiculturalism!!!
I am also on Windows 7 and use Virtualbox with a Linux ( debian ) guest, i would recommand it because I for myself am faster doing some stuff in the commandline then clicking arround in Windows.
Another nice feature is that if you put your VM on an USB stick you can take it with you and use it everywhere where a Virtualbox Host is installed, so you can take your whole development environment with you.
It's no problem at all to use your favourite text editor or browser in Windows, just install samba and mount your home directory into Windows.
Same goes for your browser since the VM is just another machine in your LAN, instead of pointing your browser to localhost point it to the VMs Ip and you are fine.
Obvious con here is if you don't have any experience with Linux yet you should probably stick to windows because it will take you some time to get into it.
just my two cents maybe even less:
I'll suggest you a third option: to double install windows/ubuntu setup (preferably ubuntu dist which is most gui friendly) and research this option as well this way you would be more familiar with the linux/unix and even iOS which will even make you understand windows better and a better programmer. Sometimes the virtual box is too slow, while linux is very efficient with resources.
If you have the ability to install a virtual machine,you can also give a go to installing a linux distribution and get yourself familiar with this language/system of OS which a lot of the web is structured upon
I really enjoy coding node.js on windows using git bash:
http://blog.nodester.com/post/19902515151/tips-for-windows-users
It's seems faster then and easier then running VirtualBox. Given that I still use Virtual Box for testing before going to production.