diff --git a/emacs b/emacs
index a56f065..8c19300 100644
--- a/emacs
+++ b/emacs
@@ -201,8 +201,8 @@
 ;; (require 'textile-mode)
 ;; (add-to-list 'auto-mode-alist '("\\.textile\\'" . textile-mode))
 
-;; (require 'yaml-mode)
-;; (add-to-list 'auto-mode-alist '("\\.yml$" . yaml-mode))
+(require 'yaml-mode)
+(add-to-list 'auto-mode-alist '("\\.yml$" . yaml-mode))
 
 
 ;; keep a list of recently visited files
@@ -262,6 +262,11 @@
 ;;   (set-face-background 'flymake-errline "red4")
 ;;   (set-face-background 'flymake-warnline "dark slate blue"))
 
+;; highlight the current line
+(global-hl-line-mode 1)
+ 
+;; To customize the background color
+(set-face-background 'hl-line "#330")
 
 ;;;;;;;;;;;;;;;;;;
 ;; key bindings ;;
diff --git a/zsh/zshrc b/zsh/zshrc
index 2b3bf61..1652d81 100755
--- a/zsh/zshrc
+++ b/zsh/zshrc
@@ -9,8 +9,8 @@ export LANG="en_CA.UTF-8"
 
 cdpath=(~)
 
-function linux() { [[ `uname -s` = "Linux"  ]] && true }
-function mac()   { [[ `uname -s` = "Darwin" ]] && true }
+function linux() { [[ `uname -s` = "Linux"  ]] }
+function mac()   { [[ `uname -s` = "Darwin" ]] }
 
 HOSTNAME=`hostname -s`
 KEYCHAIN_HOST=`hostname`