I m going to access some other user file and file having full permissions but i am getting following error


swap file by the name "/var/tmp/myfile.txt.swp"
owned by: tilak dated: Mon Dec 24 06:21:35 2012
file name: /home/bob/myfile.txt
modified: YES
user name: tilak host name: localhost.localdomain
process ID: 7997
While opening file "/home/electronics/manju/myfile.txt"

(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 /home/electronics/manju/myfil
e.txt"
to recover the changes (see ":help recovery").
If you did this already, delete the swap file "/var/tmp/myfile.txt.swp"
to avoid this message.
"/home/electronics/manju/myfile.txt" [New File]
Press ENTER or type command to continue

Where in any of that does it say it's an error?

What it does say though, is *EXACTLY* how to deal with the issue it's encountered. Did you actually read any of that before pasting it?

for simplicity sake I can highlight the bit that says "delete the swap file "/var/tmp/myfile.txt.swp"", but there's little else we can say as that's an extremely useful message.

To add to acid_kewpie

To check if the file is in use (option 1 in your message above), you can run ps -ef |grep myfile as shown below for file abc.txt (user liza is editing file abc.txt using vi)

The first line in the output (in this case) shows that user liza is editing the file (the second line in the output reflects the grep command and is not relevant). Ask the user to stop editing and quit vi.

If the first line does not show, you can delete the swp file (if you have permissions) or ask the 'owner' to delete it. This is usually, as indicated in option 2 in the message that you got, the result of a crash of the vi session (e.g. vi killed with a kill -9 pid_of_vi_session).