Ubuntu under install software could not get lock/var/lib/dpkg/lock error

Today, when installing SSH in Ubuntu, I reported the following error:

E:could not get Lock/var/lib/dpkg/lock-open (11:resource temporarily unavailable)

E:unable to lock the Administration directory (/var/lib/dpkg/), is another process using it?

Checked, the cause of this error is that there are other resources in the installation, the second is that the previous installation did not exit normally causing the lock to not release.

Use the following command to resolve:

sudo rm/var/cache/apt/archives/lock

sudo rm/var/lib/dpkg/lock

Ubuntu under install software could not get lock/var/lib/dpkg/lock error