added all shell configuration files

shell/git.sh

@@ -0,0 +1,31 @@
+#
+# Git
+#
+
+# Author name
+export GIT_AUTHOR_NAME="`git config user.name`"
+export GIT_AUTHOR_EMAIL="`git config user.email`"
+
+# Aliases
+alias g="git"
+alias gi="git"
+alias ga="git add"
+alias gs="git status"
+alias gai="git add -i"
+alias gp="git push"
+alias gf="git fetch"
+alias gd="git difftool"
+alias gpl="git pull --rebase"
+alias gix="gitx"
+alias gx="gitx"
+
+# Git Completion
+if [ -f "/usr/local/etc/bash_completion.d/git-completion.bash" ]; then
+    source "/usr/local/etc/bash_completion.d/git-completion.bash"
+fi
+
+# Only needed for Bash. Zsh is much smarter with it's auto-completion ^_^
+if [ -n "$BASH_VERSION" ]; then
+    complete -o default -o nospace -F _git g
+    complete -o default -o nospace -F _git gi
+fi