clean up aliases

* remove aliases that I never use
* add chromekill alias to kill chrome tabs to free up memory

zsh/aliases.zsh

@@ -20,9 +20,6 @@ alias ll="ls -lFh ${colorflag}"
 alias lld="ls -l | grep ^d"
 alias rmf="rm -rf"
 
-# shortcut to dotfiles
-alias dot="cd ~/.dotfiles"
-
 # Helpers
 alias grep='grep --color=auto'
 alias df='df -h' # disk free, in Gigabytes, not bytes
@@ -36,9 +33,6 @@ alias mou='open -a Mou.app'
 alias mark='open -a Marked.app'
 alias ios='open -a /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/Applications/iPhone\ Simulator.app'
 
-# be nice
-alias please=sudo
-
 # IP addresses
 alias ip="dig +short myip.opendns.com @resolver1.opendns.com"
 alias localip="ipconfig getifaddr en1"
@@ -73,10 +67,6 @@ alias emptytrash="sudo rm -rfv /Volumes/*/.Trashes; rm -rfv ~/.Trash"
 alias hidedesktop="defaults write com.apple.finder CreateDesktop -bool false && killall Finder"
 alias showdesktop="defaults write com.apple.finder CreateDesktop -bool true && killall Finder"
 
-
-# PlistBuddy alias, because sometimes `defaults` just doesn’t cut it
-alias plistbuddy="/usr/libexec/PlistBuddy"
-
 # One of @janmoesen’s ProTip™s
 for method in GET HEAD POST PUT DELETE TRACE OPTIONS; do
     alias "$method"="lwp-request -m '$method'"
@@ -85,4 +75,7 @@ done
 # Stuff I never really use but cannot delete either because of http://xkcd.com/530/
 alias stfu="osascript -e 'set volume output muted true'"
 alias pumpitup="osascript -e 'set volume 10'"
-alias hax="growlnotify -a 'Activity Monitor' 'System error' -m 'WTF R U DOIN'"
+
+# Kill all the tabs in Chrome to free up memory
+# [C] explained: http://www.commandlinefu.com/commands/view/402/exclude-grep-from-your-grepped-output-of-ps-alias-included-in-description
+alias chromekill="ps ux | grep '[C]hrome Helper --type=renderer' | grep -v extension-process | tr -s ' ' | cut -d ' ' -f2 | xargs kill"