Unix Command Line 101

This repository contains tutorial for Command Line 101

Generate presentation

This presentation was written in markown, and uses mdpress to generate the deck itself.

to generate the presentation:

	sudo gem install mdpress
	mdpress -s nurun -a presentation.md

#Starting up a dev environment (with vagrant)

This document tries to summarize the needed operations required to setup a virtual environment using the famous tools Vagrant and Virtual Boxes in order to limit the usual dev workstation hiccups.

##Virtual box features

• You can connect with ssh to the guest host using :

  • if you are on linux or macosx: vagrant ssh

• if you are on windows, you need to download putty and connect on host: localhost port: 2222 login: vagrant password: vagrant

##First time installation Here are the steps

• ensure you have virtual box and vagrant installed on your workstation (4.2.x for vbox.)

• ensure the virtual box work folder is configured to hit a local directory

• ensure you install vagrant vbguest so your guest additions will match your virtualbox version

  In your project folder:

    	vagrant plugin install vagrant-vbguest
  

  or on windows your might need something like The plugin installation on Windows host systems my not work as expected (using vagrant gem install vagrant-vbguest). Try

    	C:\vagrant\vagrant\embedded\bin\gem.bat install vagrant-vbguest instead. (See issue #19)		
  

• checkout this repository using your favorite git client ( command line git, atlassian SourceTree, github)

• open a command line tool ( aka a terminal) and hit

    vagrant up
  

This process can take a little while ( downloading disk image of the guest os, initializing box etc...)

ERRORS

"There was an error while executing VBoxManage

There was an error while executing `VBoxManage`, a CLI used by Vagrant
for controlling VirtualBox. The command and stderr is shown below.

Command: ["hostonlyif", "create"]

Stderr: 0%...
Progress state: NS_ERROR_FAILURE
VBoxManage: error: Failed to create the host-only adapter
VBoxManage: error: VBoxNetAdpCtl: Error while adding new interface: failed to open /dev/vboxnetctl: No such file or directory

VBoxManage: error: Details: code NS_ERROR_FAILURE (0x80004005), component HostNetworkInterface, interface IHostNetworkInterface
VBoxManage: error: Context: "int handleCreate(HandlerArg*, int, int*)" at line 68 of file VBoxManageHostonly.cpp

This error can usually be fixed with the following command sudo /Library/StartupItems/VirtualBox/VirtualBox restart

source