From 9a47682916dbb6d9c861d17da8997cf946a8a38d Mon Sep 17 00:00:00 2001
From: Carl Zhu <peter_zyj@hotmail.com>
Date: Fri, 13 Sep 2019 10:53:27 -0700
Subject: [PATCH] Update ishell.go

make question mark "?" has the same effect as "help"
---
 ishell.go | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/ishell.go b/ishell.go
index f440095..83e7cbc 100644
--- a/ishell.go
+++ b/ishell.go
@@ -268,10 +268,13 @@ func (s *Shell) handleCommand(str []string) (bool, error) {
 	}
 	cmd, args := s.rootCmd.FindCmd(str)
 	if cmd == nil {
+		if args[0] == "?" {
+			s.Println(s.HelpText())
+		}
 		return false, nil
 	}
 	// trigger help if func is not registered or auto help is true
-	if cmd.Func == nil || (s.autoHelp && len(args) == 1 && args[0] == "help") {
+	if cmd.Func == nil || (s.autoHelp && len(args) == 1 && (args[0] == "help" || args[0] == "?")) {
 		s.Println(cmd.HelpText())
 		return true, nil
 	}