+
+ <varlistentry><term><option>--no-allow-insecure-repositories</option></term>
+ <listitem><para>Forbid the update command to acquire unverifiable
+ data from configured sources. Apt will fail at the update command
+ for repositories without valid cryptographically signatures.
+
+ Configuration Item: <literal>Acquire::AllowInsecureRepositories</literal>.</para></listitem>
+ </varlistentry>
+
+ <varlistentry><term><option>--show-progress</option></term>
+ <listitem><para>Show user friendly progress information in the
+ terminal window when packages are installed, upgraded or
+ removed. For a machine parsable version of this data see
+ README.progress-reporting in the apt doc directory.
+ Configuration Item: <literal>Dpkg::Progress</literal> and <literal>Dpkg::Progress-Fancy</literal>.</para></listitem>
+ </varlistentry>
+