===== Running Shell on Other OSs =====

There are times when you need Unix shell, usually for one-off script or quick test.  Here are ways I found to run shell on Chromebook, Android phone, and Windows.

  * **Chromebook**
    - **Chrome Shell** -- Type <Ctrl-Alt-T> from Chrome browser or desktop to get "crosh>" command prompt, and then type ''shell'' to get a full Bash shell.  You have to enable Developer Mode to get access to the shell command.  Chromebook can be switched into Developer Mode by pressing <Esc-Refresh-Power> and then follow instructions.
    - **Crouton** -- Install [[https://goo.gl/fd3zc|crouton]] in developer mode.  It's a shell script that installs Ubuntu/Debian in chroot environment, so you can switch between Chrome OS and Ubuntu/Debian.
      * [[https://tutorials.ubuntu.com/tutorial/install-ubuntu-on-chromebook|Install Ubuntu on a Chromebook]]
      * [[https://github.com/dnschneid/crouton|Chromium OS Universal Chroot Environment]]

  * **Android**
    - **Termux** -- Install from Play Store.  It's Ubuntu-like command-line distro.
      * [[https://termux.com/|Termux]] 

  * **Windows**
    - **BusyBox** -- There is a BusyBox binary compiled for 32-bit and 64-bit Windows.
      * [[https://frippery.org/busybox/|BusyBox for Windows]]
    - **Cygwin** -- Collection of Unix utilities running natively on Windows.
      * [[https://www.cygwin.com/|Cygwin]]
    - **Windows Subsystem for Linux** (used to be called **Bash on Ubuntu on Windows**) -- Go to //Control Panel > Programs > Turn Windows features on or off//, and enable the //Windows Subsystem for Linux// option.  After reboot, download and install Ubuntu from Windows Store.
      * [[https://docs.microsoft.com/en-us/windows/wsl|Windows Subsystem for Linux Documentation]]
    - **VirtualBox** (or **VMware** or **Hyper-V**) -- Full VM where you can install any Linux distro.
      * [[https://www.virtualbox.org/|Oracle VM VirtualBox]]
    - **Git Bash** -- It's part of **Git for Windows** application.
      * [[https://gitforwindows.org/|Git for Windows]]