root *******  3996 pts/4    S+   14:01   0:00 sudo apt install ubuntu-restricted-extras
root ******** pts/4    S+   14:01   0:01 apt install ubuntu-restricted-extras
root ******* pts/17   Ss+  14:02   0:00 /usr/bin/dpkg --status-fd 54 --unpack --auto-deconfigure /var/cache/apt/archives/libavcodec-ffmpeg-extra56_7%3a2.8.6-1ubuntu2_amd64.deb /var/cache/apt/archives/libmspack0_0.5-1_amd64.deb /var/cache/apt/archives/cabextract_1.6-1_amd64.deb /var/cache/apt/archives/ttf-mscorefonts-installer_3.4+nmu1ubuntu2_all.deb /var/cache/apt/archives/ubuntu-restricted-extras_65_amd64.deb /var/cache/apt/archives/unrar_1%3a5.3.2-1_amd64.deb /var/cache/apt/archives/libavcodec-extra_7%3a2.8.6-1ubuntu2_all.deb
*****      6417  0.0  0.0  21296   976 pts/19   S+   14:13   0:00 grep --color=auto ***strong text***apt   <E: Unable to lock the administration directory (/var/lib/dpkg/), is another process using it?>



lsof: WARNING: can't stat() fuse.gvfsd-fuse file system /run/user/1000/gvfs
      Output information may be incomplete.
COMMAND  PID USER   FD   TYPE DEVICE SIZE/OFF     NODE NAME
dpkg    *** root    3uW  REG    ***        *** /var/lib/dpkg/lock