Question:
When I run the command
root@debian-hy:/var/www/sys# rm teste.txt
rm: cannot remove `teste.txt': Operation not permitted
Strange because I can edit the file and save, but when I close the vi it generates a swap file, the file permissions follow:
-rwxrwxrwx 1 root root 6 May 21 08:31 teste.tx~
-rwxrwxrwx 1 root root 12K May 21 08:31 teste_tx.swn
-rwxrwxrwx 1 root root 12K May 21 08:31 teste_tx.swo
-rwxrwxrwx 1 root root 4.0K May 21 08:26 teste_tx.swp
-rwxrwxrwx 1 root root 12 May 21 08:31 teste.txt
-rwxrwxrwx 1 root root 0 May 21 08:26 .teste.txt.swp
-rwxrwxrwx 1 root root 0 May 21 08:26 .teste.txt.swx
Answer:
Run the operation with sudo: sudo rm teste.txt
If that doesn't work, perform the following operations:
sudo chown root teste.txt
sudo chmod 777 teste.txt
sudo rm teste.txt