small tips : Ubuntu : apt-get error : open (11: Resource temporarily unavailable)

# apt-get update E: Could not get lock /var/lib/apt/lists/lock - open (11: Resource temporarily unavailable) E: Unable to lock directory /var/lib/apt/lists/

Just remove /var/lib/apt/lists/lock file.

# rm /var/lib/apt/lists/lock # rm: remove regular empty file `/var/lib/apt/lists/lock'? y

After removing the lock file , you will perform apt-get w/o the error.

# apt-get update Ign http://jp.archive.ubuntu.com oneiric InRelease Ign http://jp.archive.ubuntu.com oneiric-updates InRelease

In my case , this occurred after the network connectivity had been lost and I had aborted the apt-get command.