From d986648e9c83cdf79eb3ef4233d7836b67fb9c84 Mon Sep 17 00:00:00 2001
From: fangye <fangye@talkweb.com.cn>
Date: Sun, 23 Jan 2022 19:10:43 +0800
Subject: [PATCH] =?UTF-8?q?shell=E5=91=BD=E4=BB=A4=E8=A1=8C=E5=A2=9E?=
 =?UTF-8?q?=E5=8A=A0=E5=9B=9E=E9=80=80=E6=94=AF=E6=8C=81?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Signed-off-by: fangye <fangye@talkweb.com.cn>
---
 components/shell/src/base/shmsg.c | 5 +++++
 1 file changed, 5 insertions(+)
 mode change 100755 => 100644 components/shell/src/base/shmsg.c

diff --git a/components/shell/src/base/shmsg.c b/components/shell/src/base/shmsg.c
old mode 100755
new mode 100644
index c8ece50c..74e26169
--- a/components/shell/src/base/shmsg.c
+++ b/components/shell/src/base/shmsg.c
@@ -216,6 +216,11 @@ VOID ShellTaskEntry(VOID)
                 ptr = buf;
                 break;
             }
+            if (*ptr == '\b' && ptr != buf) { /* support backspace */
+                PRINTK("\b \b");
+                ptr--;
+                break;
+            }
             if (!VISIABLE_CHAR(*ptr)) {
                 break;
             }