diff --git a/, b/,
index 6fbe681..c08e5aa 100755
--- a/,
+++ b/,
@@ -1,16 +1,16 @@
-#!/usr/bin/env ruby
+#!/bin/bash
+set -e
 
-puts %q[This is a "comma script", meaning a script starts with a comma.
-The benefit is: type "," and press TAB, and you can see all comma scripts!
-]
+echo "This is a \"comma script\", meaning a script starts with a comma."
+echo "The benefit is: type \",\" and press TAB, and you can see all comma scripts!"
 
-puts ''
+echo ""
 
-puts 'Shell: ' + `echo $SHELL`
-puts "PATH: #{ENV['PATH'].split(':').size} paths [Please run ',path' to view path list]"
+echo "Shell:" $(echo $SHELL)
+echo "PATH:" $(echo "$PATH" | tr ':' '\n' | wc -l) "paths [Please run ',path' to view path list]"
 
-puts ''
+echo ""
 
-puts 'Ruby version: ' + `/usr/bin/env ruby -v`
-puts 'Python version: ' + `/usr/bin/env python --version`
+echo "Ruby version:" $(/usr/bin/env ruby -v)
+echo "Python version:" $(/usr/bin/env python --version)
 
diff --git a/,week b/,week
new file mode 100755
index 0000000..e9510d2
--- /dev/null
+++ b/,week
@@ -0,0 +1,14 @@
+#!/usr/bin/env ruby
+
+require 'date'
+
+idx = ARGV[0] || '0'
+idx = idx.to_i
+
+
+today = Date.today + idx*7
+
+monday = today - today.cwday + 1
+sunday = monday + 6
+
+puts "week-#{today.cweek}-#{monday.strftime('%m%d')}-#{sunday.strftime('%m%d')}"