The standard documentation
appears for this under-appreciated [command] in the [Expect] [extension] here
[http://www.cotse.com/dlf/man/expect/exp_continue.htm].

'''exp_continue''' isn't strictly necessary.  One ''could'' write a loop from other,
more primitive, elements.  However, exp_continue is a great convenience for the
common situation where it can be used to easily implement various client/server 
models in expect, such as FTP, SMTP or HTTP, where we are uncertain about the 
number and order of commands sent by server. [[explain much more]]

'''exp_continue''' is labeled as "under-appreciated" above because there's such
a gap between the large number of people who can program basic [exp_send]-'''expect'''
sequences, and the small minority who are familiar with '''exp_continue''',
despite the latter's usefulness.

[[provide sample code for some client/server]]
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[[[Category Command]|[Category Expect]]]