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Top Forums Shell Programming and Scripting matching user input to a text file loop? Post 302577327 by Chubler_XL on Monday 28th of November 2011 06:23:22 PM
Old 11-28-2011
Assumption: Your trying to validate user input against a list of valid responses (in cars_names.txt).

Code:
read -p "Car: " cars1
until grep -wiq "$cars1" cars_names.txt && [ -n "$cars1" ]
do
   echo "Invalid car. Try again"
   read -p "Car: " cars1
done


Last edited by Chubler_XL; 11-28-2011 at 07:26 PM.. Reason: Added trap for empty response
This User Gave Thanks to Chubler_XL For This Post:
 

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Graphics::Primitive::Insets(3pm)			User Contributed Perl Documentation			  Graphics::Primitive::Insets(3pm)

NAME
Graphics::Primitive::Insets - Space between things DESCRIPTION
Graphics::Primitive::Insets represents the amount of space that surrounds something. This object can be used to represent either padding or margins (in the CSS sense, one being inside the bounding box, the other being outside) SYNOPSIS
use Graphics::Primitive::Insets; my $insets = Graphics::Primitive::Insets->new({ top => 5, bottom => 5, left => 5, right => 5 }); METHODS
Constructor new Creates a new Graphics::Primitive::Insets. Instance Methods as_array Return these insets as an array in the form of top, right, bottom and left. bottom Set/Get the inset from the bottom. equal_to Determine if these Insets are equal to another. left Set/Get the inset from the left. right Set/Get the inset from the right. top Set/Get the inset from the top. zero Sets all the insets (top, left, bottom, right) to 0. AUTHOR
Cory Watson, "<gphat@cpan.org>" SEE ALSO
perl(1) COPYRIGHT &; LICENSE Copyright 2008-2010 by Cory G Watson. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. perl v5.12.3 2010-08-21 Graphics::Primitive::Insets(3pm)
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