Nokia-N900:~# apt-get remove grep-gnu Reading package lists... Done Building dependency tree Reading state information... Done The following packages will be REMOVED: grep-gnu WARNING: The following essential packages will be removed. This should NOT be done unless you know exactly what you are doing! grep-gnu 0 upgraded, 0 newly installed, 1 to remove and 0 not upgraded. After this operation, 1143kB disk space will be freed. You are about to do something potentially harmful. To continue type in the phrase 'Yes, do as I say!' ?]
Essential: yes