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Full Discussion: Lines with strange characters and sed...
Top Forums Shell Programming and Scripting Lines with strange characters and sed... Post 302252170 by KenJackson on Tuesday 28th of October 2008 10:03:58 PM
Old 10-28-2008
I haven't tried this, but it may get you a step closer to what you want.
Code:
for f in $(find . -name SOMETHING*); do
    g="modified-$f"
    cp -iv $f $g
    while head -n1 $g|egrep -qv '^Data[[:print:]]{20}' && test -s $g; do
        sed 1d -i $g
    done
done

It loops through all the files found, makes a copy, and chops off the first line as long as it doesn't start with 'Data' followed by 20 printable characters.

Note that egrep -qv does not print any output (-q) and returns true if it does not (-v) find the regex. And test -s returns true if the file is greater than zero size.
 

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LEARN ABOUT DEBIAN

test::data

Data(3pm)						User Contributed Perl Documentation						 Data(3pm)

NAME

       Test::Data -- test functions for particular variable types

SYNOPSIS

       use Test::Data qw(Scalar Array Hash Function);

DESCRIPTION

       Test::Data provides utility functions to check properties and values of data and variables.

   Functions
       Plug-in modules define functions for each data type.  See the appropriate module.

   How it works
       The Test::Data module simply imports functions from Test::Data::* modules.  Each module defines a self-contained function, and puts that
       function name into @EXPORT.  Test::Data defines its own import function, but that does not matter to the plug-in modules.

       If you want to write a plug-in module, follow the example of one that already exists.   Name the module Test::Data::Foo, where you replace
       Foo with the right name.  Test::Data should automatically find it.

BUGS

       I'm not a very good Windows Perler, so some things don't work as they should on Windows. I recently got a Windows box so I can test things,
       but if you run into problems, I can use all the patches or advice you care to send.

SEE ALSO

       Test::Data::Scalar, Test::Data::Array, Test::Data::Hash, Test::Data::Function, Test::Builder

SOURCE AVAILABILITY

       This source is in Github:

	       http://github.com/briandfoy/test-data/tree/master

AUTHOR

       brian d foy, "<bdfoy@cpan.org>"

COPYRIGHT AND LICENSE

       Copyright (c) 2002-2009 brian d foy.  All rights reserved.

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

perl v5.14.2							    2009-02-12								 Data(3pm)
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