diff --git a/dotfiles/.bashrc b/dotfiles/.bashrc
index 1a47f6f..d6e8143 100644
--- a/dotfiles/.bashrc
+++ b/dotfiles/.bashrc
@@ -17,7 +17,7 @@ export PS2
 
 #PATH="/Applications/wxMaxima.app/bin:$PATH"
 #PATH="/Applications/gnuplot.app/bin:$PATH"
-PATH="/Applications/Arduino.app/Contents/Resources/Java/hardware/tools/avr/bin:$PATH"
+#PATH="/Applications/Arduino.app/Contents/Resources/Java/hardware/tools/avr/bin:$PATH"
 PATH=/opt/local/bin:/opt/local/sbin:$PATH
 MANPATH=/opt/local/man:$MANPATH
 export PATH
@@ -32,11 +32,14 @@ export TRASH="${HOME}/.Trash/"
 #complete -c man sudo gksu
 complete -c man sudo
 
+set -o noclobber
+
 alias ls='ls -G'
 alias l='ls -alh'
-alias cp='cp -v'
-alias mv='mv -v'
-alias rm='rm -v'
+alias cp='cp -iv'
+alias mv='mv -iv'
+alias ln='ln -iv'
+alias rm='rm -iv'
 alias grep='grep --color'
 alias egrep='egrep --color'
 alias bc='bc -l'