emacs-find-file.rb

#!/usr/bin/env ruby
#
# Calls a running emacs server to visit a file, and optionally move
# point to a line number when included after a colon, e.g. like the
# one from a ruby stacktrace:
#
# emacs-find-file foo/bar.rb:123

abort "Usage: emacs-find-file <file>" unless ARGV[0]

file, line_number = ARGV[0].split(':')

find_file = "(find-file \"#{file}\")"

lisp = if line_number
         "(with-current-buffer #{find_file} (goto-char (point-min)) (forward-line (1- #{line_number.to_i})))"
       else
         find_file
       end

`emacsclient --no-wait --eval '#{lisp}' > /dev/null`

Got a special place in my bash: alias e='emacs-find-file'