# Push and pop directories on directory stack

 alias pu='pushd'
 alias po='popd'

 # Basic directory operations

 alias .='pwd'
 alias ...='cd ../..'

 alias -- -='cd -'

 # Super user

 alias _='sudo'
 

 #alias g='grep -in'

 # Show history

 alias history='fc -l 1'
 

 # List direcory contents

 alias lsa='ls -lah'

 alias l='ls -la'

 alias ll='ls -alr'
 alias sl=ls # often screw this up

 alias afind='ack-grep -il'