When you edit a file in a Linux server, and for some reason the exception exits, enter the editor again to prompt:
Swap file ". Http_code.sh.swp" already exists!
[O]pen read-only, (E) dit anyway, (R) Ecover, (Q) uit, (A) Bort:
If this is the case, whichever option you choose, the next entry will still appear such a hint, the reason for this problem is that after the exception exit, Linux will generate a SWP file for this file, the next time the editor will judge if there is this file will still be prompted if you do not want to restore the contents of the old file , the file will be deleted directly, the hint will not appear again.
Executing the LL command under the current directory is invisible to the file and can be executed directly:
[Root@vm_170_163_centos sh]# rm-rf. http_code.sh.swp
Then the http_code.sh is edited, and no longer appears.