added aliases

.bashrc

@@ -88,9 +88,9 @@ fi
 #export GCC_COLORS='error=01;31:warning=01;35:note=01;36:caret=01;32:locus=01:quote=01'
 
 # some more ls aliases
-#alias ll='ls -l'
-#alias la='ls -A'
-#alias l='ls -CF'
+alias ll='ls -lhA'
+alias la='ls -hA'
+alias ltr='ls -ltrAh'
 
 # Alias definitions.
 # You may want to put all your additions into a separate file like