diff --git a/scripts/init.sh b/scripts/init.sh
index 3a9a0476..885b7868 100644
--- a/scripts/init.sh
+++ b/scripts/init.sh
@@ -256,8 +256,7 @@ grep -q 'firewall_mod' "$CRASHDIR/configs/ShellClash.cfg" 2>/dev/null || {
 [ -w /etc/profile ] && profile=/etc/profile
 set_profile() {
     [ -z "$my_alias" ] && my_alias=crash
-    sed -i "/alias crash=*/"d "$1"
-    sed -i "/alias ${my_alias}=*/"d "$1"
+    sed -i "/ShellCrash\/menu.sh/"d "$profile"
     echo "alias ${my_alias}=\"$shtype $CRASHDIR/menu.sh\"" >>"$1" #设置快捷命令环境变量
     sed -i '/export CRASHDIR=*/'d "$1"
     echo "export CRASHDIR=\"$CRASHDIR\"" >>"$1" #设置路径环境变量
diff --git a/scripts/misnap_init.sh b/scripts/misnap_init.sh
index e7a820c7..8a1a69d4 100644
--- a/scripts/misnap_init.sh
+++ b/scripts/misnap_init.sh
@@ -3,6 +3,7 @@
 
 CRASHDIR="$(uci get firewall.ShellCrash.path | sed 's/\/misnap_init.sh//')"
 profile=/etc/profile
+. "$CRASHDIR"/configs/ShellCrash.cfg
 
 autoSSH(){
 	#自动开启SSH
@@ -55,12 +56,11 @@ init(){
 	done
 	sleep 20
 	#初始化环境变量
-	sed -i "/alias crash/d" $profile
-	sed -i "/alias clash/d" $profile
-	sed -i "/export CRASHDIR/d" $profile
-	echo "alias crash=\"sh $CRASHDIR/menu.sh\"" >>$profile
-	echo "alias clash=\"sh $CRASHDIR/menu.sh\"" >>$profile
-	echo "export CRASHDIR=\"$CRASHDIR\"" >>$profile
+    [ -z "$my_alias" ] && my_alias=crash
+    sed -i "/ShellCrash\/menu.sh/"d "$profile"
+    echo "alias ${my_alias}=\"sh $CRASHDIR/menu.sh\"" >>"$profile"
+	sed -i "/export CRASHDIR/d" "$profile"
+	echo "export CRASHDIR=\"$CRASHDIR\"" >>"$profile"
 	autoSSH #软固化功能
 	auto_clean #自动清理
 	#设置init.d服务
diff --git a/scripts/start.sh b/scripts/start.sh
index d1e53456..3ca56e18 100644
--- a/scripts/start.sh
+++ b/scripts/start.sh
@@ -2148,12 +2148,11 @@ init)
             profile=$(cat /etc/profile | grep -oE '\-f.*jffs.*profile' | awk '{print $2}')
         fi
     fi
-    sed -i "/alias crash/d" $profile
-    sed -i "/alias clash/d" $profile
-    sed -i "/export CRASHDIR/d" $profile
-    echo "alias crash=\"$CRASHDIR/menu.sh\"" >>$profile
-    echo "alias clash=\"$CRASHDIR/menu.sh\"" >>$profile
-    echo "export CRASHDIR=\"$CRASHDIR\"" >>$profile
+    [ -z "$my_alias" ] && my_alias=crash
+    sed -i "/ShellCrash\/menu.sh/"d "$profile"
+    echo "alias ${my_alias}=\"sh $CRASHDIR/menu.sh\"" >>"$profile"
+    sed -i "/export CRASHDIR/d" "$profile"
+    echo "export CRASHDIR=\"$CRASHDIR\"" >>"$profile"
     [ -f "$CRASHDIR"/.dis_startup ] && cronset "保守模式守护进程" || $0 start
     ;;
 webget)
diff --git a/scripts/webget.sh b/scripts/webget.sh
index 77b24551..d8700df4 100644
--- a/scripts/webget.sh
+++ b/scripts/webget.sh
@@ -1333,7 +1333,10 @@ getcore(){ #下载内核文件
 		rm -rf ${TMPDIR}/core_new.tar.gz
 		[ -z "$custcorelink" ] && error_down
 	else
-		[ -n "$(pidof CrashCore)" ] && ${CRASHDIR}/start.sh stop #停止内核服务防止内存不足
+		[ -n "$(pidof CrashCore)" ] && {
+			${CRASHDIR}/start.sh stop #停止内核服务防止内存不足
+			rm -rf "$TMPDIR"/CrashCore #删除缓存内核防止缓存空间不足
+		}
 		[ -f ${TMPDIR}/core_new.tar.gz ] && {
 			mkdir -p ${TMPDIR}/core_tmp
 			[ "$BINDIR" = "$TMPDIR" ] && rm -rf ${TMPDIR}/CrashCore #小闪存模式防止空间不足