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Top Forums Shell Programming and Scripting How to delete all leading empty lines in a file? Post 302464590 by durden_tyler on Wednesday 20th of October 2010 01:10:10 PM
Old 10-20-2010
Code:
$
$ cat -n input.txt
     1
     2
     3
     4  test
     5
     6  Test
$
$
$ perl -lne 'if ($x||/./){$x=1; print}' input.txt
test

Test
$
$

tyler_durden
 

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Test::Requires(3)					User Contributed Perl Documentation					 Test::Requires(3)

NAME
Test::Requires - Checks to see if the module can be loaded SYNOPSIS
# in your Makefile.PL use inc::Module::Install; test_requires 'Test::Requires'; # in your test use Test::More tests => 10; use Test::Requires { 'HTTP::MobileAttribute' => 0.01, # skip all if HTTP::MobileAttribute doesn't installed }; isa_ok HTTP::MobileAttribute->new, 'HTTP::MobileAttribute::NonMobile'; # or use Test::More tests => 10; use Test::Requires qw( HTTP::MobileAttribute ); isa_ok HTTP::MobileAttribute->new, 'HTTP::MobileAttribute::NonMobile'; # or use Test::More tests => 10; use Test::Requires; test_requires 'Some::Optional::Test::Required::Modules'; isa_ok HTTP::MobileAttribute->new, 'HTTP::MobileAttribute::NonMobile'; DESCRIPTION
Test::Requires checks to see if the module can be loaded. If this fails rather than failing tests this skips all tests. Test::Requires can also be used to require a minimum version of Perl: use Test::Requires "5.010"; # quoting is necessary!! # or use Test::Requires "v5.10"; AUTHOR
Tokuhiro Matsuno <tokuhirom @*(#RJKLFHFSDLJF gmail.com> THANKS TO
kazuho++ # some tricky stuff miyagawa++ # original code from t/TestPlagger.pm tomyhero++ # reported issue related older test::builder tobyink++ # documented that Test::Requires "5.010" works ENVIRONMENT
If the "RELEASE_TESTING" environment variable is true, then instead of skipping tests, Test::Requires bails out. SEE ALSO
"TestPlagger.pm" in t LICENSE
This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself. perl v5.18.2 2017-10-06 Test::Requires(3)
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