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Full Discussion: While loop read line not working
Top Forums Shell Programming and Scripting While loop read line not working Post 302471344 by Corona688 on Friday 12th of November 2010 02:20:14 PM
Old 11-12-2010
Quote:
The problem here is.
$path_to_dir has 3 lines.
<$path_to_dir tries to read from that as if it's a filename -- not as if it's a list of lines. Technically it's valid for a filename to have newlines in it, strangley enough! The only invalid characters for a filename are NULLs and forward slashes.

Depending on what shell you're using you could do:

Code:
while read line1
do
done <<<"${list_of_lines}"

Also, you should always, always quote your variables unless you want them to start splitting when they end up with spaces in them. No reason not to.
This User Gave Thanks to Corona688 For This Post:
terrylin
 

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LEARN ABOUT DEBIAN

ppi::token::quotelike

PPI::Token::QuoteLike(3pm)				User Contributed Perl Documentation				PPI::Token::QuoteLike(3pm)

NAME

       PPI::Token::QuoteLike - Quote-like operator abstract base class

INHERITANCE

	 PPI::Token::QuoteLike
	 isa PPI::Token
	     isa PPI::Element

DESCRIPTION

       The "PPI::Token::QuoteLike" class is never instantiated, and simply provides a common abstract base class for the five quote-like operator
       classes. In PPI, a "quote-like" is the set of quote-like things that exclude the string quotes and regular expressions.

       The subclasses of "PPI::Token::QuoteLike" are:

       qw{} - PPI::Token::QuoteLike::Words
       `` - PPI::Token::QuoteLike::Backtick
       qx{} - PPI::Token::QuoteLike::Command
       qr// - PPI::Token::QuoteLike::Regexp
       <FOO> - PPI::Token::QuoteLike::Readline

       The names are hopefully obvious enough not to have to explain what each class is. See their pages for more details.

       You may note that the backtick and command quote-like are treated separately, even though they do the same thing. This is intentional, as
       the inherit from and are processed by two different parts of the PPI's quote engine.

SUPPORT

       See the support section in the main module.

AUTHOR

       Adam Kennedy <adamk@cpan.org>

COPYRIGHT

       Copyright 2001 - 2011 Adam Kennedy.

       This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

       The full text of the license can be found in the LICENSE file included with this module.

perl v5.10.1							    2011-02-26						PPI::Token::QuoteLike(3pm)
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