update `.bashrc`

bashrc

@@ -8,8 +8,11 @@
 shopt -s checkwinsize
 
 # history
+export HISTCONTROL=ignoredups:erasedups
+export HISTSIZE=-1
+export HISTFILESIZE=-1
 shopt -s histappend
-PROMPT_COMMAND="history -a"
+PROMPT_COMMAND="history -a; history -c; history -r; $PROMPT_COMMAND"
 
 # set the title to user@host:dir
 PS1="\[\e]0;\u@\h:\w\a\]$PS1"
@@ -43,10 +46,11 @@ alias grep="grep --color"
 
 # ls
 alias ls="ls --color"
-alias ll="ls -AFv1 --group-directories-first"
+alias ll="ls -AF1L"
+alias lll="ls -AFlh"
 
 # nvim
-alias :e="nvim"
+alias :e=nvim
 
 # enable bash completion in interactive shells
 if ! shopt -oq posix; then