Workshops/Git Workshop/Installing Git

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Revision as of 15:27, 5 March 2016 by Rob Kam (talk | contribs) (bringing up to date)
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Here are some quick instructions for installing Git, and getting ready to upload things to GitHub.

If you're having problems with any of the below, we can sort it out at the workshop (or, preferably, slightly before: I'll be around for at least an hour before the workshop in case anyone needs one-on-one help with their installs).

Download and install

Linux, Mac OS X and Windows download from Git downloads.

Install with default options.

2. Generate an SSH key

First, check to see if you already have an SSH key. Fire up your terminal (or, on Windows, the 'Git Bash' that msysgit installed for you), and have a look:

 $ ls ~/.ssh

If you see some keyfiles:


then you're good to go. Skip ahead to step 3.

If you don't see any keyfiles, or you get an error like:

 ls: .ssh: No such file or directory
then you'll need to generate a key. Just run
ssh-keygen -t rsa
and hit return to accept the defaults when it asks you questions. It should go something like this:
 $ ssh-keygen -t rsa
 Generating public/private rsa key pair.
 Enter file in which to save the key (/Users/chris/.ssh/id_rsa): 
 Created directory '/Users/chris/.ssh'.
 Enter passphrase (empty for no passphrase): 
 Enter same passphrase again: 
 Your identification has been saved in /Users/chris/.ssh/id_rsa.
 Your public key has been saved in /Users/chris/.ssh/
 The key fingerprint is:
 b5:16:b4:df:9c:2e:21:8c:a8:5a:e2:a7:47:8d:ef:16 chris@pookie.local
 The key's randomart image is:
 +--[ RSA 2048]----+
 |          .      |
 |         . .     |
 |          +      |
 |       . + + o . |
 |     o. S = o +  |
 |    o.E  . . o   |
 |  ..o. .    . .  |
 | . +o o      .   |
 |  ++ o.          |

3. Tell GitHub about you

Go sign up for a GitHub account if you don't already have one:

Now we need to tell GitHub about your public key. In your terminal, print out the contents of your public key file like this:

 $ cat ~/.ssh/
 ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAQEA7PifNLhyb4R5Wqe6jzhD2JUgSuiYA6icRzLf7m3E8L8J
 RMirqkoGeJk1J5a0oLF7qpP8QzZCOCBeQ876+9a8kX5BduyGVnJjrYEFZQ== chris@pookie.local

and then pop over to your GitHub account page and copy and paste your public key:


Click 'Add key', and you're all done!