the next command. The function have to take no arguments. Default
is a function, returning strings <code>"shortest-package-name[command-number]: "</code>.</p>

<h3><p><i>Variable:</i> <b>*PS2*</b></p></h3>

<p>Either a string or a function that returns a string to be used when prompting
user for the rest of incomplete command. The function have to take no
arguments. Default value is <code>"&gt; "</code>.</p>

<h3><p><i>Variable:</i> <b>*DEBUG-PS1*</b></p></h3>

<p>Like <code>*ps1*</code>, but in debugger. D