From bb07e5b33dc7dbfcee39e53c7b6b726b63253200 Mon Sep 17 00:00:00 2001
From: skywind3000 <skywind3000@163.com>
Date: Wed, 5 Dec 2018 18:00:37 +0800
Subject: [PATCH] update documentation

---
 README.md | 7 ++++++-
 z.lua     | 6 +++++-
 2 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/README.md b/README.md
index fd022e2..2509c51 100644
--- a/README.md
+++ b/README.md
@@ -68,7 +68,12 @@ z -e foo    # echo the best match, don't cd
 - set `$_ZL_DATA` in .bashrc/.zshrc to change the datafile (default ~/.zlua).
 - set `$_ZL_NO_PROMPT_COMMAND` if you're handling PROMPT_COMMAND yourself.
 - set `$_ZL_EXCLUDE_DIRS` to an array of directories to exclude.
-- set `$_ZL_ADD_ONCE` to '1' to update database only if `$PWD` changed.
+- set `$_ZL_ADD_ONCE` to '1' to update database only if `$PWD` changed.
+- set `$_ZL_MAXAGE` to define a aging threshold (default is 5000).
+- set `$_ZL_CD` to specify your own cd command.
+- set `$_ZL_ECHO` to 1 to display new directory name after cd.
+
+
 
 ## Benchmark
 
diff --git a/z.lua b/z.lua
index 356d7a0..7f29ce8 100644
--- a/z.lua
+++ b/z.lua
@@ -4,7 +4,7 @@
 -- z.lua - z.sh implementation in lua, by skywind (2018/03/19)
 -- Licensed under MIT license.
 --
--- Version 32, Last Modified: 2018/11/23 16:23
+-- Version 32, Last Modified: 2018/12/05 17:55
 --
 -- * 10x times faster than fasd and autojump
 -- * 3x times faster than rupa/z
@@ -53,6 +53,10 @@
 --   set $_ZL_DATA in .bashrc/.zshrc to change the datafile (default ~/.zlua).
 --   set $_ZL_NO_PROMPT_COMMAND if you're handling PROMPT_COMMAND yourself.
 --   set $_ZL_EXCLUDE_DIRS to an array of directories to exclude.
+--   set $_ZL_ADD_ONCE to 1 to update database only if $PWD changed.
+--   set $_ZL_CD to specify your own cd command
+--   set $_ZL_ECHO to 1 to display new directory name after cd.
+--   set $_ZL_MAXAGE to define a aging threshold (default is 5000).
 --
 --=====================================================================