root@kali:~# apt-get upgrade

Reading package lists... Done
Building dependency tree
Reading state information... Done
Calculating upgrade... Done
The following packages were automatically installed and are no longer required:
  libfreerdp-cache1.1 libfreerdp-client1.1 libfreerdp-codec1.1
  libfreerdp-common1.1.0 libfreerdp-core1.1 libfreerdp-crypto1.1
  libfreerdp-gdi1.1 libfreerdp-locale1.1 libfreerdp-primitives1.1
  libfreerdp-utils1.1 libtxc-dxtn-s2tc libwinpr-crt0.1 libwinpr-crypto0.1
  libwinpr-dsparse0.1 libwinpr-environment0.1 libwinpr-file0.1
  libwinpr-handle0.1 libwinpr-heap0.1 libwinpr-input0.1
  libwinpr-interlocked0.1 libwinpr-library0.1 libwinpr-path0.1
  libwinpr-pool0.1 libwinpr-registry0.1 libwinpr-rpc0.1 libwinpr-sspi0.1
  libwinpr-synch0.1 libwinpr-sysinfo0.1 libwinpr-thread0.1 libwinpr-utils0.1
  multiarch-support

Use 'apt autoremove' to remove them.

E: Could not get lock /var/cache/apt/archives/lock - open (11: Resource temporarily unavailable)
E: Unable to lock directory /var/cache/apt/archives/