plomlompom.com Git - config/blob - all_new_2018/limit_packages/purge_nonrequireds.sh

   1 #!/bin/sh
   2 # This script removes all Debian packages that are not of Priority
   3 # "required" or not depended on by packages of priority "required"
   4 # or not listed in the file ./required_nonrequireds.
   5 # If ./required_nonrequireds does not exist, will abort, as user
   6 # probably does not know what they are doing then.
   7 set -x
   8 set -e
   9
  10 dpkg-query -Wf '${Package} ${Priority}\n' | grep ' required' | sed 's/ required//' > /tmp/list_white_unsorted
  11 cat 'required_nonrequireds' >> /tmp/list_white_unsorted
  12 sort /tmp/list_white_unsorted > /tmp/list_white
  13 dpkg-query -Wf '${Package}\n' > /tmp/list_all_packages
  14 sort /tmp/list_all_packages > /tmp/foo
  15 mv /tmp/foo /tmp/list_all_packages
  16 comm -3 /tmp/list_all_packages /tmp/list_white > /tmp/list_black
  17 apt-mark auto `cat /tmp/list_black`
  18 DEBIAN_FRONTEND=noninteractive apt-get -y --purge autoremove
  19 rm /tmp/list_all_packages /tmp/list_white_unsorted /tmp/list_white /tmp/list_black