jin@1:~$ sudo apt-get purge jd [sudo] password for jin: Reading package lists... Done Building dependency tree Reading state information... Done The following packages were automatically installed and are no longer required: cmigemo-common libmigemo1 linux-headers-4.4.0-79 linux-headers-4.4.0-79-generic linux-image-4.4.0-79-generic linux-image-extra-4.4.0-79-generic nkf Use 'sudo apt autoremove' to remove them. The following packages will be REMOVED: jd* 0 upgraded, 0 newly installed, 1 to remove and 30 not upgraded. After this operation, 8,217 kB disk space will be freed. Do you want to continue? [Y/n] y (Reading database ... 259306 files and directories currently installed.) Removing jd (1:2.8.9-150226-5build1) ... Processing triggers for man-db (2.7.5-1) ... Processing triggers for desktop-file-utils (0.22-1ubuntu5.1) ... Processing triggers for bamfdaemon (0.5.3~bzr0+16.04.20160824-0ubuntu1) ... Rebuilding /usr/share/applications/bamf-2.index... Processing triggers for mime-support (3.59ubuntu1) ... jin@1:~$