vim报错解决方法小结

E325: ATTENTION
Found a swap file by the name ".num.txt.swp"
找到一个叫".num.txt.swp"的swap文件 

          owned by: root   dated: Mon Jan 15 11:56:39 2018
         file name: /oldboy/num.txt
          modified: YES
         user name: root   host name: oldboyedu01-nb
        process ID: 6542
While opening file "num.txt"
             dated: Mon Jan 15 11:56:26 2018

(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 num.txt"
    to recover the changes (see ":help recovery").
    If you did this already, delete the swap file ".num.txt.swp"
    to avoid this message.

Swap file ".num.txt.swp" 
临时文件  .num.txt.swp  已经存在。

[O]pen Read-Only, (E)dit anyway, (R)ecover, (D)elete it, (Q)uit, (A)bort:

报错原因：
Found a swap file 或 Swap file xxxx already exists!

解决流程:

方法1
确认之前的修改可以丢弃，那么直接删除这个临时文件即可。
rm .num.txt.swp -f

方法2
确认之前的修改 不能丢
[O]pen Read-Only, (E)dit anyway, (R)ecover, (D)elete it, (Q)uit, (A)bort:

vim打开文件，输入R恢复之前的修改。或 vim -r
保存并退出。
删除这个临时文件即可。
rm .num.txt.swp -f