diff --git a/APP_Framework/Applications/main.c b/APP_Framework/Applications/main.c
index b9d1a8d62..6cd956945 100644
--- a/APP_Framework/Applications/main.c
+++ b/APP_Framework/Applications/main.c
@@ -17,10 +17,11 @@
 
 extern int FrameworkInit();
 extern void ApplicationOtaTaskInit(void);
-extern void Ch4As830(void);
+extern void ShowMemory(void);
+extern long ShowTask(void);
 int main(void)
 {
-	printf("Hello, world!\n");
+	printf("Hello, world! Running on gapuino board.\n");
 	FrameworkInit();
 #ifdef APPLICATION_OTA
 	ApplicationOtaTaskInit();
diff --git a/Ubiquitous/XiUOS/board/gapuino/board.c b/Ubiquitous/XiUOS/board/gapuino/board.c
index d484bd3da..7b16b53c6 100755
--- a/Ubiquitous/XiUOS/board/gapuino/board.c
+++ b/Ubiquitous/XiUOS/board/gapuino/board.c
@@ -68,7 +68,8 @@ void InitBoardHardware(void)
     timer_initialize();
     KPrintf("memory address range: [0x%08x - 0x%08x], size: %d\n", (x_ubase) MEMORY_START_ADDRESS, (x_ubase) MEMORY_END_ADDRESS, GAP8_SRAM_SIZE);
     /* initialize memory system */
-	KPrintf("gap8 cluster id: [0x%x], _procid: [0x%x]\n", _clusterid(),_procid());
+    KPrintf("gap8 cluster id: [0x%x], _procid: [0x%x]\n", _clusterid(),_procid());
+	
     KPrintf("board init done.\n");
 	KPrintf("start kernel...\n");
     return;
diff --git a/Ubiquitous/XiUOS/tool/shell/letter-shell/shell.c b/Ubiquitous/XiUOS/tool/shell/letter-shell/shell.c
index dd14df382..564d8325e 100644
--- a/Ubiquitous/XiUOS/tool/shell/letter-shell/shell.c
+++ b/Ubiquitous/XiUOS/tool/shell/letter-shell/shell.c
@@ -155,6 +155,7 @@ ShellCommand* shellSeekCommand(Shell *shell,
  */
 void shellInit(Shell *shell, char *buffer, unsigned short size)
 {
+
     shell->parser.length = 0;
     shell->parser.cursor = 0;
     shell->history.offset = 0;
@@ -187,6 +188,7 @@ void shellInit(Shell *shell, char *buffer, unsigned short size)
                                          SHELL_DEFAULT_USER,
                                          shell->commandList.base,
                                          0));
+
     shellWriteCommandLine(shell, 1);
 }
 
@@ -863,7 +865,7 @@ ShellCommand* shellSeekCommand(Shell *shell,
         name = shellGetCommandName(&base[i]);
         if (!compareLength)
         {
-            if (strcmp(cmd, name) == 0)
+            if (strncmp(cmd, name, strlen(cmd)) == 0)
             {
                 return &base[i];
             }