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How to loop read command and print valid invalid states.?

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# 1  
Old 12-22-2014
How to loop read command and print valid invalid states.?
My question is how would i loop a read command to keep asking the user for input and eventually print the no. of valid invalid inputs after a specified control input typed i.e. (-3).
Last edited by Flowoftruth; 12-22-2014 at 03:37 PM.. Reason: Original code altered
# 2  
Old 12-22-2014
Please show us what you have tried so far.

Why look for a specific string to terminate input? Why not just use End-Of-File (ctl-d for interactive input)?

Is this a homework assignment?
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