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Shell Programming and Scripting
read the lines of multiple files
Post 302666709 by vbe on Thursday 5th of July 2012 04:58:49 AM
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1. Shell Programming and Scripting
Could any one tell me how to read and match multiple lines in perl? Did this code below still work in this situation?
while (<FILE>) {
if (/ /) {
}
}
Thanks a lot! (5 Replies)
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Hello,
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i have to search a string and replace with multiple lines.
example
Input
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output
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Hi All,
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i hav e written like this
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while
do
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... (2 Replies)
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... (1 Reply)
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Hey guys. I know pratically 0 about Linux, so could anyone please give me instructions on how to accomplish this ?
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Hello All,
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RS
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LEARN ABOUT CENTOS
perl::critic::policy::builtinfunctions::prohibitcomplexmappings
Perl::Critic::Policy::BuiltinFunctions::ProhibitComplexMUsernContributed Perl DoPerl::Critic::Policy::BuiltinFunctions::ProhibitComplexMappings(3) NAME
Perl::Critic::Policy::BuiltinFunctions::ProhibitComplexMappings - Map blocks should have a single statement. AFFILIATION
This Policy is part of the core Perl::Critic distribution. DESCRIPTION
The map function can be confusing to novices in the best of circumstances. Mappings with multiple statements are even worse. They're also a maintainer's nightmare because any added complexity decreases readability precipitously. Why? Because map is traditionally a one-liner converting one array to another. Trying to cram lots of functionality into a one-liner is a bad idea in general. The best solutions to a complex mapping are: 1) write a subroutine that performs the manipulation and call that from map; 2) rewrite the map as a for loop. CAVEATS
This policy currently misses some compound statements inside of the map. For example, the following code incorrectly does not trigger a violation: map { do { foo(); bar() } } @list CONFIGURATION
By default this policy flags any mappings with more than one statement. While we do not recommend it, you can increase this limit as follows in a .perlcriticrc file: [BuiltinFunctions::ProhibitComplexMappings] max_statements = 2 AUTHOR
Chris Dolan <cdolan@cpan.org> CREDITS
Initial development of this policy was supported by a grant from the Perl Foundation. COPYRIGHT
Copyright (c) 2007-2011 Chris Dolan. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. perl v5.16.3 2014-06-09 Perl::Critic::Policy::BuiltinFunctions::ProhibitComplexMappings(3)