git --version tells which version of git you have.

Originally from Martin Atukunda <matlads@dsmagic.com> but adjusted for
post-rename code.

Signed-off-by: Junio C Hamano <junkio@cox.net>

git.sh.in

@@ -0,0 +1,32 @@
+#!/bin/sh
+
+cmd=
+path=$(dirname $0)
+case "$#" in
+0)	;;
+*)	cmd="$1"
+	shift
+	case "$cmd" in
+	-v|--v|--ve|--ver|--vers|--versi|--versio|--version)
+		echo "git version @@GIT_VERSION@@"
+		exit 0 ;;
+	esac
+	test -x $path/git-$cmd && exec $path/git-$cmd "$@" ;;
+esac
+
+echo "Usage: git COMMAND [OPTIONS] [TARGET]"
+if [ -n "$cmd" ]; then
+    echo " git command '$cmd' not found: commands are:"
+else
+    echo " git commands are:"
+fi
+
+cat <<\EOF
+    add apply archimport bisect branch checkout cherry clone
+    commit count-objects cvsimport diff fetch format-patch
+    fsck-cache get-tar-commit-id init-db log ls-remote octopus
+    pack-objects parse-remote patch-id prune pull push rebase
+    relink rename repack request-pull reset resolve revert
+    send-email shortlog show-branch status tag verify-tag
+    whatchanged
+EOF