diff --git a/bash/bash_functions b/bash/bash_functions
index fb04401..4f33d76 100644
--- a/bash/bash_functions
+++ b/bash/bash_functions
@@ -53,13 +53,13 @@ showclock() {
 	done
 }
 
-ruler() { 
+ruler() {
 	for s in '....^....|' '1234567890'; do
 		w=${#s}
 		str=$(for (( i=1; $i<=$(( ($COLUMNS + $w) / $w )) ; i=$i+1 )); do echo -n $s; done )
 		str=$(echo $str | cut -c -$COLUMNS)
 		echo $str
-	done 
+	done
 }
 
 up() {
@@ -86,6 +86,6 @@ fnottype() {
 }
 
 # simple calculator
-? () { 
-    echo "$*" | bc -l 
+c () {
+    echo "$*" | bc -l
 }
diff --git a/zsh/zshrc b/zsh/zshrc
index e396020..904d94a 100644
--- a/zsh/zshrc
+++ b/zsh/zshrc
@@ -59,5 +59,4 @@ man() {
 
 [[ $TERM == "urxvt" ]] && export TERM="rxvt-unicode"
 
-
-
+alias su="su -"