diff --git a/.zshrc2 b/.zshrc2
index 26fc2c2..7932159 100644
--- a/.zshrc2
+++ b/.zshrc2
@@ -71,6 +71,12 @@ antigen apply
 
 # functions
 export DOTFILES=$( cd "$( dirname "${BASH_SOURCE[0]:-${(%):-%x}}" )" && pwd )
+
+SUDO=''
+if (( $EUID != 0 )); then
+    SUDO='sudo'
+fi
+
 dfs()
 {
 	case $1 in
@@ -89,13 +95,22 @@ dfs()
 	esac
 }
 
+dogo()
+{
+	if [[ -z "$1" || "$1" =~ "-h|--help" ]]; then
+		echo "usage: dogo <container>"
+	else
+		$SUDO docker exec -it $1 zsh
+	fi
+}
+
 # alias
 alias "pls"='sudo $(fc -ln -1)'
 alias "se"='sudo -sE'
 alias "pbd"='ping baidu.com'
 alias "p114"='ping 114.114.114.114'
 alias "p666"='ping6 2001:da8::666'
-alias l='ls -lah --time-style="+%y-%m-%d %H:%M"'
+alias l='ls -lAGh --time-style="+%y-%m-%d %H:%M"'
 
 # key bindings
 bindkey "^b" beginning-of-line