linux下vi操做Found a swap file by the name

當我在linux下用vi打開Test.java文件時

會出現以下信息：

E325: ATTENTION  
Found a swap file by the name ".Test.java.swp"  
  
         owned by: root   dated: Wed Dec  7 13:52:56 2011  
         file name: /var/tmp/Test.java  
         modified: YES  
         user name: root   host name: localhost  
         process ID: 26153 (still running)  
While opening file "Test.java"  
             dated: Wed Dec  7 14:00:46 2011  
      NEWER than swap file!  
  
(1) Another program may be editing the same file.  
    If this is the case, be careful not to end up with two  
    different instances of the same file when making changes.  
    Quit, or continue with caution.  
  
(2) An edit session for this file crashed.  
    If this is the case, use ":recover" or "vim -r Test.java"  
    to recover the changes (see ":help recovery").  
    If you did this already, delete the swap file ".Test.java.swp"  
    to avoid this message.  
"Test.java" 11L, 237C  
Press ENTER or type command to continue

緣由是我以前有一次使用 vi 操做Test.java文件時出現了異常中斷，因此在當前目錄下產生了一個.Test.java.swp文件

可是我使用 ls 命令查看該目錄下，卻發現沒有這個文件，後來使用 ls -a 命令查看才知道Test.java.swp是一個隱藏文件。

注：以.開頭的文件就是隱藏文件

當我把該隱藏文件刪除後再次打開就沒有上面的警告了。

rm .Test.java.swp # 而後輸入y確認刪除