There is a problem with the Linux write Java program

When I open the Test.java file with VI under Linux

[Email protected] tmp]# VI Test.java

The following information will appear:

DOS Code

2. E325:attention
4. Found a swap file by the name . TEST.JAVA.SWP "
8. Owned By:root dated:wed Dec 7 : £º
10. File name:/var/tmp/test.java
12. Modified:yes
14. User Name:root host Name:localhost
16. Process ID: 26153 (still running)
18. While opening file "Test.java"
20. dated:wed Dec 7 :xx:
22. Newer than swap file!
26. (1) Another program may editing the same file.
28. If This is the case, being careful not to end
30. Different instances of the same file when making changes.
32. Quit, or continue with caution.
36. (2) an edit session for the this file crashed.
38. If This is the case, use ": Recover" or "Vim-r Test.java"
40. To recover the changes (see ": Help Recovery").
42. If you do this already, delete the swap file ". TEST.JAVA.SWP "
44. To avoid the this message.
46. "Test.java" 11L, 237C
48. Press ENTER or type command to continue

The reason is that I had an unexpected interrupt when I used the VI operation Test.java file, so a. Test.java.swp file was generated in the current directory

But I use the LS command to view the directory, but found that there is no such file, and later use the LS-A command to see that TEST.JAVA.SWP is a hidden file.

Note: Files that begin with. are hidden files

When I delete the hidden file and open it again, there is no warning above.

[[Email protected] tmp]# RM. Test.java.swp

Rm:remove regular file '. Test.java.swp '? Y

[Email protected] tmp]#

There is a problem with the Linux write Java program