Here is a set of instructions to apply new files to my github repository which is called projectx.

Before you start make sure you don't already have the repository name listed as a directory in the local current directory.

1) copy the remote repository to your local machine
syntax: git clone [uri] # eg.

git clone git@github.com:jrobertson/projectx.git

1.5) cd into the newly created local repository eg.

cd projectx

2) copy the local file to the local repository directory
eg.

cp ../projectx2/feed.rb .

3) add the local files to the local repository
syntax: git add [file] # eg.

git add feed.rb

4) Inform the git system that you have completed the required changes for this session.

git commit -a # add a message associated with this file revision

5) copy the new local repository files back to the remote repository.

git push # updates the changes back to the server

Note: The text with the square-brackets should be replaced with your own values.

Reference: A tour of git: the basics [cworth.org]

// This task will rename your files to the rails 2.0 format, using git mv. Add it to /lib/tasks/rails.rake

namespace 'views' do
  desc 'Renames all .rhtml views to .html.erb, .rjs to .js.rjs, .rxml to .xml.builder, and .haml to .html.haml'
  task 'rename' do
    Dir.glob('app/views/**/[^_]*.rhtml').each do |file|
      puts `git mv #{file} #{file.gsub(/\.rhtml$/, '.html.erb')}`
    end

    Dir.glob('app/views/**/[^_]*.rxml').each do |file|
      puts `git mv #{file} #{file.gsub(/\.rxml$/, '.xml.builder')}`
    end

    Dir.glob('app/views/**/[^_]*.rjs').each do |file|
      puts `git mv #{file} #{file.gsub(/\.rjs$/, '.js.rjs')}`
    end
    Dir.glob('app/views/**/[^_]*.haml').each do |file|
      puts `git mv #{file} #{file.gsub(/\.haml$/, '.html.haml')}`
    end
  end
end

// Use this command in your repos directory to push to your heroku repos. Useful for github / heroku sync.

git push -v -f git@heroku.com:<application>.git

Just a really quick and easy shell alias for my preferred defaults for Git's repository and branch viewer, Gitk.

This runs "gitk"...
...including all branches,
...outputting errors to the black hole,
...and any extra command-line arguments.

# Run like this
# gitk --since="2 days ago" &

alias gitk="gitk --all $1 2>/dev/null"

I believe this is how svn diff operates... but anyway, this alias will allow you to diff the last two commits in Git through TextMate. If you have a theme that supports Diff's then you'll see the differences clearly. Remove the last pipe statement (the mate part) to expose your diff in the console.

alias gitdiff='git log|grep commit|cut -d " " -f2|head -n 2|xargs -n 2 git diff -R|mate'

Here is a quick executable cmd that you run inside a folder checked out with Subversion. It will clone the repository using Git into the parent folder as <projname>.git

Stick this code into ~/bin/gitify and add ~/bin to your path:

#!/usr/bin/env ruby -wKU

# get svn info location
svnurl = `svn info | grep "^URL:"`.gsub('URL: ','').chomp

# project = basename
project = File.basename(Dir.pwd)

puts cmd = "git-svn clone #{svnurl} ../#{project}.git"

`#{cmd}`