Lately I've been fat-fingering git commands, injecting a space between `gi` and `t` and failing to inject a space between that `t` and the command; this simple script fixes that.

gi

#!/usr/bin/env ruby
# gi - a dynamic alias for poorly-typed git commands
# handle a command `gi tdiff --cached`,
# transparently as `git diff --cached`.

exit(127) if ARGV.empty?
exit(127) unless ARGV.first.start_with?('t')

argv = ARGV.dup
argv.unshift(argv.shift[1..-1])
exec('git', *argv)