Install Cygwin and apt-cyg (and SSH)

This is the easiest way I know of to install Cygwin and apt-cyg on Windows.

1. Open the Start menu, type cmd to filter, and select cmd to open a console window.

   

2. Use the console to create a root folder for Cygwin, such as C:\cygwin, then download and install Cygwin and wget.

   C:\Windows\System32> mkdir c:\cygwin
   C:\Windows\System32> explorer https://www.cygwin.com/setup-x86_64.exe
   C:\Windows\System32> mv %USERPROFILE%\Downloads\setup-x86_64.exe c:\cygwin
   C:\Windows\System32> c:\cygwin\setup-x86_64.exe -q -R c:\cygwin -s http://cygwin.mirror.constant.com -l c:\cygwin\packages -P wget

3. After the installation finishes, a new shortcut called Cygwin64 Terminal will appear on the desktop.

   

4. Right-click the Cygwin64 Terminal shortcut and select Run as administrator to run Cygwin as root.

5. In the Cygwin root console, use wget to download and install the apt-cyg package manager.

   $ wget rawgit.com/transcode-open/apt-cyg/master/apt-cyg
   $ install apt-cyg /bin
   $ rm apt-cyg

6. Follow the instructions for apt-cyg to install additional software as needed. For example, to install SSH, run the Cygwin64 Terminal as Administrator and enter the command apt-cyg install openssh.

   $ apt-cyg install openssh
   Installing openssh
   openssh-7.6p1-1.tar.xz: OK
   Unpacking...
   Package openssh requires the following packages, installing:
   bash csih cygrunsrv cygwin diffutils libcrypt0 libedit0 libgcc1 libgssapi_krb5_2 libkrb5_3 libopenssl100 libssp0 zlib0
   Package bash is already installed, skipping
   Package csih is already installed, skipping
   Package cygrunsrv is already installed, skipping
   Package cygwin is already installed, skipping
   Package diffutils is already installed, skipping
   Package libcrypt0 is already installed, skipping
   Package libedit0 is already installed, skipping
   Package libgcc1 is already installed, skipping
   Package libgssapi_krb5_2 is already installed, skipping
   Package libkrb5_3 is already installed, skipping
   Package libopenssl100 is already installed, skipping
   Package libssp0 is already installed, skipping
   Package zlib0 is already installed, skipping
   Running /etc/postinstall/openssh.sh
   Package openssh installed
   $ ssh
   usage: ssh [-46AaCfGgKkMNnqsTtVvXxYy] [-b bind_address] [-c cipher_spec]
              [-D [bind_address:]port] [-E log_file] [-e escape_char]
              [-F configfile] [-I pkcs11] [-i identity_file]
              [-J [user@]host[:port]] [-L address] [-l login_name] [-m mac_spec]
              [-O ctl_cmd] [-o option] [-p port] [-Q query_option] [-R address]
              [-S ctl_path] [-W host:port] [-w local_tun[:remote_tun]]
              [user@]hostname [command]

7. To periodically update an existing Cygwin installation, open the Start menu, type cmd to filter, select cmd to open a console, and run the setup program again.

   C:\Windows\System32> C:\cygwin\setup-x86_64.exe --no-desktop --no-shortcuts --no-startmenu --quiet-mode