refactor(sh_config.sh): 优化备份函数 tar_back

- 修改备份文件名，使用下划线替代点号
- 优化 ll -h 命令，使用双引号包裹文件名

sh_config.sh

@@ -254,9 +254,9 @@ function findByContent() {
 
 # 备份
 function tar_back() {
-	time=$(date "+%Y-%m-%d_%H_%M_%S")
-	tar -zcvf "${1}".${time}.tgz "$1"
-	ll -h ${1}.${time}.tgz
+    time=$(date "+%Y-%m-%d_%H_%M_%S")
+    tar -zcvf "${1}_${time}.tgz" "$1"
+    ll -h "${1}_${time}.tgz"
 }
 
 pid-cmd-centos() {